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100-mA synchronous buck converter delivers 150-V input capability with 12-uA quiescent current May 13, 2013
Linear Technology has introduced a 150 V input-capable synchronous buck converter that delivers up to 100 mA of continuous output current. Read more 20-A DC/DC step-down micromodule regulator delivers guaranteed 1.5 percent total VOUT accuracy May 8, 2013
Linear Technology Corporation has introduced a 20 A DC/DC step-down micromodule regulator with onboard precision differential remote sense amplifier. Read more Low noise, 1-mV output ripple, 5-A step-down uModule regulator supports data converters and high speed transceivers May 1, 2013
Linear Technology Corporation has introduced a 1 mV output ripple µModule (micromodule) regulator designed to power data converters and high speed transceivers.
Read more Isolated 8-port PoE PSE controllers eliminate expensive opto-couplers April 30, 2013
The LTC4290/LTC4271 isolated 8-port power source equipment (PSE) controller chipset from Linear Technology is designed for use in IEEE 802.3at (PoE+) Type 1- and Type 2-compliant Power-over-Ethernet (PoE) systems.
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40-VIN /60-VOUT 5-A constant-current, constant-voltage converter incorporates internal PWM generator
April 19, 2013
Linear Technology has introduced a DC/DC converter designed to operate as a constant-current source and constant-voltage regulator with an internal 5 A switch. Read more
I/Q sampling digital predistortion receiver enables acquisition of 300-MHz bandwidth in base station applications
Linear Technology has introduced the LTM9013, a wideband RF-to-digital µModule (micromodule) receiver that includes a high performance dual 14-bit, 310Msps analog-to-digital converter (ADC), a high IIP3 I/Q demodulator, two variable gain amplifiers, and 300 MHz lowpass filters.
17-V, 2.25-MHz, synchronous step-down regulator delivers 1-A of continuous output current to outputs as low as 0.6-V
Linear Technology is offering a high efficiency, 17 V input capable synchronous buck regulator that delivers up to 1 A of continuous output current to outputs as low as 0.6 V. Dual output sine wave to logic converter adopts selectable input filtering to provide lowest additive jitter
Linear Technology Corporation has introduced a DC to 300 MHz dual output buffer/driver/logic translator, ideal for converting sine waves into low phase noise logic level signals.
Phase modulated full-bridge controller focuses on isolated high power applications
Linear Technology Corporation has introduced the H-grade version of the LTC3722-1, a phase-modulated full bridge DC/DC controller with adaptive or manual zero voltage switching (ZVS).
60-V input, low IQ inverting DC/DC controller uses a single inductor to simplify design
Linear Technology Corporation has introduced a high voltage inverting DC/DC controller that uses a single inductor to produce a negative voltage from a positive input voltage. Low frequency clock supports long duration power-on reset and watchdog timer applications
Linear Technology has introduced a simple, accurate low frequency clock configurable for long duration power-on reset and watchdog timer applications.
250-mA wide VIN range buck-boost charge pump offers low conducted and radiated noise
Linear Technology Corporation has introduced a versatile 250 mA high voltage buck-boost charge pump. 15-V, 200-mA synchronous buck-boost DC/DC converter delivers 1.3-uA of quiescent current
Linear Technology has released a synchronous buck-boost converter that delivers up to 200 mA of continuous output current from a wide variety of input sources including single or multiple-cell batteries as well as solar panels and supercaps. Dual 750-mA/250-mA linear LDO regulator with independent inputs delivers ultralow noise benefits
Linear Technology Corporation has introduced a dual low noise, low dropout regulator with independent inputs and independent shutdown control for each channel. 14-bit, 4.5-Msps SAR ADC integrates precision reference in an 8-lead TSOT-23 package
Linear Technology Corporation has introduced the LTC2314-14, a 14-bit 4.5Msps successive approximation register (SAR) ADC in an 8-lead TSOT-23 package, offering up to 90% reduction in size over competing solutions for space-conscious applications.
High efficiency bidirectional multicell battery balancer
With the LTC3300-1, chipmaker Linear Technology addresses the fledgling market of batteries for electric and hybrid electric vehicles. The LTC3300-1 is a fault-protected controller IC for transformer-based bidirectional active balancing of multicell battery stacks. The device can also be used in high-power UPS/grid energy storage systems and general purpose multicell battery stacks.
Precise 50-uV offset op amp operates with 76-V input range
Linear Technology has introduced the LT6016 and LT6017, dual and quad wide input range operational amplifiers.
Surface mount, hermetic voltage references deliver stability benefits
Linear Technology has unveiled the LS8 reference family, a series of hermetic precision voltage references packaged in a 5 mm x 5 mm surface mount, low stress ceramic package.
Buck-boost DC/DC controller converts input voltages from 2.8V to 80V to fixed output voltage at high efficiency
A high efficiency and wide input voltage range are the main characteristics of Linear Technology's new LT8705 Inverting, boost or buck-boost micromodule converter delivers up to 700-mA with four small passive components
Linear Technology Corporation has introduced a 2.8 V-18 V input, multi-topology DC/DC µModule (micromodule) converter, with onboard inductor, power switch and DC/DC controller delivering up to 700 mA output current.
140-V op amp combines 3-pA bias current and low frequency noise benefits to deliver precision for high gain applications
Linear Technology has released a precision operational amplifier that operates on a supply voltage up to 140 V (or ±70 V).
Fully differential IF 15-dB RF/IF amplifier achieves 50-dBm OIP3
Linear Technology has released a 15 dB amplifier, which achieves high dynamic range in a 100 Ohm differential environment from 20 MHz to 1 GHz and beyond. IF/RF gain block state-of-the-art performance the easy way
Bandwidth has become more precious than gold. As we push more and more data wirelessly through our smartphones, tablets, GPS, and video players, the spectrum has become more crowded. Increasingly complex and efficient modulation schemes allow us to carry more MBits/mHz through the air.
Triple-supply controller simplifies power system design, protects against reversed inputs
Linear Technology Corporation has introduced a triple-supply prioritized PowerPath controller for 2.5 V to 36 V systems. 60-V, LED controller features internal PWM generator for boost, buck or buck-boost high current LED applications
Linear Technology has released a 60V DC/DC controller designed to operate as a constant-current source and constant-voltage regulator. Linear Technology reveals eight-channel configurable 1-A buck DC/DCs for multi-rail systems
Linear Technology Corporation has introduced a highly-integrated general-purpose power management solution for systems requiring multiple low voltage power supplies. The LTC3375 features eight independent 1 A channels with I2C control, flexible sequencing and fault monitoring in a compact QFN package. 60-V input step-down DC/DC controller draws 40-uA in battery-powered systems
Linear Technology Corporation has introduced a high voltage step-down DC/DC controller that draws 40 µA quiescent current in standby mode with the output enabled in Burst Mode operation. Rail-to-rail 80-V power monitor measures current and voltage with greater accuracy
Linear Technology Corporation has introduced a wide range I2C system monitor that monitors the current, voltage and power of any 0 V to 80 V rail.Dual hot swap controller with flexible current limit manages load surges without system interruption
Linear Technology Corporation has introduced a dual Hot Swap controller, enabling safe board insertion into live 4.5 V to 44 V backplanes. Accurate hybrid/electric battery monitor includes isolated interface
Linear Technology has introduced a high voltage battery monitor for hybrid electric and electric vehicles, and other high voltage, stacked-battery systems.
60-V, synchronous buck LED driver delivers more than 300 W of LED power
Linear Technology has released a synchronous buck LED driver controller that delivers more than 300 W of LED power and offers a 6 V to 60 V input voltage range suitable for applications including automotive, industrial and architectural lighting. Lowest noise, 16-bit 20-Msps ADCs achieve 84-dB SNR and 46-microvolt (RMS) input-referred noise
Linear Technology Corporation has introduced three low power 16-bit, 20 Msps analog-to-digital converters (ADCs), the LTC2269, LTC2270 and LTC2271, offering the lowest input-referred noise and tight integral nonlinearity error (INL) for high precision DC measurements.
2.5-A, 15-V synchronous boost regulator offers 95 percent efficiency
Linear Technology Corporation has introduced a 3 MHz current-mode, synchronous boost DC/DC converter with integrated output disconnect. 38-V, 10-A rugged step-down uModule regulator features fail safe load protection
Linear Technology Corporation introduces the LTM4641, a 4.5 V to 38 V input, 0.6 V to 6 V output, 10 A step-down µModule regulator with comprehensive electrical and thermal protection for loads such as processors, ASICs and high-end FPGAs.
Wireless sensor network solutions achieve industry's lowest power consumption at less than 50-uA per node
Linear Technology’s Dust Networks product group has introduced the SmartMesh LTC5800 (system-on-chip) and LTP5900 (module) families, the industry’s lowest power IEEE 802.15.4E compliant wireless sensor networking products. Achieve 101dB SNR with the LTC2379-18
Successive Approximation Register Analog-to-Digital Converters (SAR ADCs) are key components in instrumentation, industrial control, and test equipment applications. The accuracy, noise and speed of the SAR ADC often determine the overall system performance.
50-Ohm IF gain block consumes 450-mW yet provides 47-dBm OIP3, 15.5-dB gain
Linear Technology announces the LTC6431-15, a 15.5 dB gain block that achieves high dynamic range in a 50 Ohm environment from 20 MHz to 1 GHz and beyond. Dual 13-A or single 26-A DC/DC micromodule step-down regulator with integrated heat sink delivers up to 100-A
Linear Technology Corporation has introduced a dual 13A per output or single 26 A output DC/DC µModule step-down regulator that delivers up to 100 A when four devices are current shared. High efficiency PoE++ PD controller offers up to 90-W delivered power
Linear Technology Corporation has introduced the LT4275, LTPoE++, PoE+ and PoE-compliant powered device (PD) interface controller for applications requiring up to 90 W of delivered power. Low noise fully differential 1.6-GHz buffer drives 50-Ohm load
Linear Technology has unveiled a fully differential buffer amplifier with 1.5 nV/√Hz output-referred noise. The LTC6417 is capable of driving a differential 50 Ohm load and is optimized for driving 14- and 16-bit pipeline ADCs.
High accuracy temperature sensor enables adjustable alerts
Linear Technology Corporation has introduced the LTC2996 high accuracy temperature sensor for 2.25 V to 5.5 V systems.
60-V battery charging controller and power manager features input maximum power point control
Linear Technology Corporation introduces the LTC4000-1, a high voltage controller and power manager with input maximum power point control (MPPC) that converts virtually any externally compensated DC/DC power supply into a full-featured battery charger. Low VIN capable 5-A DC/DC converter generates positive or negative regulated voltage
Linear Technology Corporation has unveiled a versatile DC/DC converter for boost, SEPIC and inverting power supply applications.
Surge stopper integrates ideal diode for comprehensive protection against transient voltages
Linear Technology Corporation has introduced a surge stopper with ideal diode, providing compact and low-loss protection for 4 V to 80 V electronics in automotive, avionics and industrial systems. 42-V, 2.5-A (IOUT) and 5-A (IOUT), 2-MHz step-down DC/DC converters only require 2.7uA of quiescent current
Linear Technology Corporation has introduced the LT3975, a 42 V step-down switching regulator that can deliver 2.5 A of continuous output current and requires only 2.7 µA of quiescent current.
Diode controller replaces two Schottky diodes to enable low loss ORing of multiple power sources
Linear Technology has introduced a 0 V to 18 V dual ideal diode controller that replaces two high power Schottky diodes, enabling low loss ORing of multiple power sources with minimal disturbance to supply voltages.
Novel current-sharing, diode-OR controller simplifies design of reliable power systems
Linear Technology Corporation has introduced a first-of-its-kind current-sharing controller with reverse current blocking. The LTC4370 frees the designer from the limitations and complications of existing current-sharing methods to obtain a simpler, quicker, and space-saving solution for sharing between two supplies.
Diode controller provides negative input protection and low current operation
Linear Technology Corporation has introduced a high voltage ideal diode controller that offers a simple low loss replacement to Schottky diodes, along with key features targeted for automotive, avionics as well as solar applications.
65-V, 500-mA synchronous buck converter delivers 90 percent efficiency, requires 12-uA quiescent current
Linear Technology has released a 65 V input-capable synchronous buck converter, which delivers up to 500 mA of continuous output current from a 16-lead thermally enhanced 3 mm x 5 mm DFN or MSOP package.
42-V, 2.5-A(IOUT), 2.2-MHz synchronous step-down DC/DC converter delivers 96 percent efficiency
Linear Technology Corporation has introduced a 2.5 A, 42 V input capable synchronous step-down switching regulator. Synchronous rectification delivers efficiency as high as 96% while Burst Mode operation keeps quiescent current under 2.5 µA in no-load standby conditions.
30-MHz to 1.4-Hz wideband I/Q demodulator with IIP2 optimization and DC offset cancellation boosts zero-IF receiver performance
Linear Technology has unveiled an ultra-wide bandwidth direct conversion I/Q demodulator with linearity of 31 dBm IIP3 and 70 dBm IIP2.
Broadband RF mixer achieves 26.9-dBm IIP3 with 294-mW power consumption
Linear Technology has unveiled a 300 MHz to 4 GHz downconverting mixer with an IIP3 (Input Third Order Intercept) of 26.9 dBm, low power consumption of 294 mW, and wide IF bandwidth of 2.5 GHz.
High voltage inverting charge pumps offer low input and output ripple
Linear Technology Corporation has released two versatile high voltage charge pumps. The LTC3261 is a high voltage inverting charge pump that can deliver up to 100 mA of output current.
36-VIN, 600-mA uModule step-down regulator consumes 5-uA quiescent current
Linear Technology Corporation has introduced a 5 µA quiescent current DC/DC step-down µModule regulator with low dropout voltage and a wide input and output voltage range of operation.
High accuracy temperature sensor provides flexible alert outputs
Linear Technology Corporation has introduced a high accuracy temperature sensor and dual supply monitor for low voltage systems.
Fully differential amplifier drives 18-bit ADCs while consuming 5-mW
Linear Technology has released a low power fully differential amplifier that can drive high precision 16- and 18-bit SAR ADCs at only 1 mA supply current.
Quad uModule ADCs with Integrated signal conditioning reduce size, power and time-to-market for imaging and base station designs
Linear Technology has introduced a quad 14-bit, 125Msps µModule analog-to-digital converter (ADC) with integrated fixed gain drivers, passive filtering and bypass capacitance.
Dual positive/negative ±20-V IN ±150-mA LDO with 20-uV RMS noise supports wider temperature range
Linear Technology Corporation has released a new high reliability MP grade, wider temperature range version of the LT3032, a dual, low noise, positive/negative low dropout voltage linear regulator.
100-V high-side current sense DC/DC controller helps to regulate a constant-current or constant-voltage for HBLEDs
Linear Technology has released a 100 V, high-side current sense DC/DC controller designed to regulate a constant-current or constant-voltage that is ideal for driving high brightness (HB) LEDs.
18-bit, 2.5-Msps SAR ADC achieves 99.8-dB SNR with flexible analog input ranges
Linear Technology Corporation has introduced what the company claims to be the industrys fastest 18-bit no cycle latency SAR analog-to-digital converter. The LTC2389-18 achieves 99.8 dB SNR and -116 dB THD at sample rates up to 2.5 Msps.
36-V nano current voltage monitor focuses on multicell applications
Linear Technology Corporation has introduced a 2.5 V to 36 V, two input voltage monitor that draws 850 nA of quiescent current, offering extended battery life in battery-powered applications.
2.25-MHz step-down DC/DC converter delivers 3-A of continuous output current from each channel
Linear Technology Corporation has released a monolithic, dual output step-down switching regulator that delivers up to 3 A of continuous output current from each channel.
High linearity downconverting mixer covers 4-6-GHz RF frequency range
Linear Technology has released a 4 GHz to 6 GHz high dynamic range downconverting mixer. The LTC5544 mixer offers high linearity with 25.9 dBm IIP3 (Input Third-Order Intercept), high conversion gain of 7.4 dB owing to its integrated IF amplifier, and a noise figure of 11.3 dB.
Isolated flyback controller with PFC controls voltage or current
Linear Technologys LT®3798 isolated controller with active power factor correction (PFC) is specifically designed for regulating bus voltages or driving constant current applications over a wide input range of 10 V to 480 V.
36-V, 5-A uModule regulator protects input supplies from overcurrent conditions
Linear Technology has released a 36 V input, 5 A step-down µModule regulator with an adjustable and precise (+/-10%) accurate current limit. The current limit enables designers to set the maximum amount of power drawn from the supply, preventing input voltage droop caused by overcurrent conditions. When multiple LTM8026 are configured with the outputs tied together, each converter can be programmed with a maximum current limit to meet its specific input supply limitations for greater output power, a technique known as asymmetric power sharing.
15-W I2C power manager charges LiFePO4 cells at 3.5-A for high power density portable and battery back-up systems
Linear Technology Corporation has introduced a high power, I2C controlled, high efficiency PowerPath manager, ideal diode controller and Lithium Iron Phosphate (LiFePO4) battery charger for single-cell devices such as portable medical and industrial devices, backup devices and other high power density battery-powered applications.
60-V synchronous buck-boost LED driver delivers more than 100-W of LED power
Linear Technology has introduced a synchronous buck-boost DC/DC LED driver and voltage controller, which can deliver over 100 W of LED power. The devices 4.7 V to 60 V input voltage range makes it ideal for a wide variety of applications, including automotive, industrial and architectural lighting.
Isolated flyback controller with PFC controls voltage or current
Micropower pushbutton on/off controller delivers automatic turn-on/off capabilities
Linear Technology Corporation is introducing a pushbutton on/off controller that manages 1.5V to 36 V system power via a pushbutton interface or the presence of a supply. Unlike typical pushbutton controllers that initiate system power-ups only with the toggle of a pushbutton, the LTC2955 automatically turns on a system when power is applied from a primary or secondary supply, such as a wall adapter or car battery.
Serial interfaces for high speed ADCs
In medical applications such as magnetic resonance imaging (MRI), ultrasound, CT scanners, and digital X-ray, high channel count analog-to-digital converters (ADCs) are used to sample large arrays of data. Serial interfaces are used to acquire the sampled data to reduce the number of pins on the ADC and FPGA. In addition, routing of a high speed serial interface saves board space.
Quad digital power supply manager features powerful GUI to speed development
Linear Technology Corporation has introduced a power supply manager with EEPROM for complete digital management of power supply systems with four or more power rails. The LTC2974 utilizes an I2C interface and PMBus command set to monitor and control positive or negative supplies to provide rapid troubleshooting and debug capabilities during power system design, development, production and failure analysis.
Synchronous rail-to-rail, single resistor step-down regulator delivers 1.5-A at 0-V to 15-V
Linear Technology Corporation had introduced a 1.5 A, high efficiency, synchronous buck regulator that can be easily paralleled for higher current applications and is adjustable down to 0 V with a single resistor. The new LTC3600 switching regulator architecture uses a 50 µA current reference, combined with a single resistor to set the output voltage. The design enables easy current sharing between multiple regulators, setting the output voltage for all of the regulators with a single external resistor.
Synchronous step-down controller provides true current mode control with sub milliohm DCR sensing
Linear Technology Corporation has introduced a current mode synchronous step-down DC/DC controller that allows the use of low DC resistance power inductor using a novel DCR sensing architecture that enhances the signal-to-noise ratio of the current sense signal. A power inductor DC resistance of as low as 0.17 milliohms can be used to maximize converter efficiency and increase power density.
Dual output, multiphase step-down DC/DC controller operates with power blocks and DrMOS devices
Linear Technology Corporation has introduced a dual output synchronous step-down DC/DC controller with multiphase operation, differential output voltage sensing and high frequency operation. The LTC3861 controller works in conjunction with external power train devices such as power blocks and DrMOS, as well as discrete N-channel MOSFETs and associated gate drivers, enabling flexible design configurations.
Wideband I/Q demodulator features IIP2 optimization and DC offset cancellation to boost receiver performance
Linear Technology announces the LTC5585, an ultrawide bandwidth direct conversion I/Q demodulator with outstanding linearity performance (IIP3 = 25.7 dBm and IIP2 = 60 dBm at 1.95 GHz). The device is capable of baseband output demodulation bandwidth of over 530 MHz, which can support new generation wideband LTE multimode receivers and digital pre-distortion (DPD) receivers' bandwidth requirements.
Dual 3-A, 2.5-MHz, 42-V boost/inverting DC/DC converter features integrated fault protection
Linear Technology Corporation has introduced a dual independent channel, step-up DC/DC converter with integrated fault protection features for output shorts, input/output overvoltages, and overtemperature conditions. Each channel of the LT8582 uses two integrated 42 V switches: a 1.7 A master switch and a 1.3 A slave switch that can be tied together for a total current limit of 3 A.
Synchronous stepdDown DC/DC controller offers up to 95 percent efficiency with 2-MHz operating frequency
Linear Technology Corporation has introduced a high frequency controlled on-time single output dual phase synchronous step-down DC/DC controller that can achieve up to 95% efficiency with a 25 A output when operating at 2 MHz. The operating frequency is selectable from 200 kHz to 2 MHz or can be synchronized to an external clock.
Surge stopper shields sensitive electronics from transients beyond 100-V
Linear Technology Corporation has introduced an overvoltage protection controller that provides overvoltage and overcurrent protection to high-availability electronic systems. Supply voltages surge whenever currents flowing through long inductive power buses change abruptly.
Dual 18-bit current output SPI DAC achieves ±1LSB INL and DNL over temperature
Linear Technology Corporation has introduced the industry's first high performance dual, 18-bit, current output digital-to-analog converter (DAC). The LTC2758 offers accurate 18-bit DC specifications, including ±1LSB (max) INL and DNL over temperature. In addition to excellent DC specifications, the LTC2758 offers fast settling of 2.1 µs and low 0.4 nVs (3V), 2 nVs (5 V) glitch impulse, making it possible to produce higher frequency, lower noise output waveforms.
Linear Technology extends wireless sensor networking capabilities by acquiring Dust Networks
±60-V fault protected full-/half-duplex 3-V to 5.5-V RS485 transceivers achieve 20-Mbps
Linear Technology Corporation is introducing a family of rugged, high voltage tolerant RS485/RS422 transceivers for elimination of field failures without the need of costly external protection devices. In practical RS485 systems, installation cross-wiring faults, ground voltage faults or lightning induced surge voltages can cause overvoltage conditions that exceed absolute maximum ratings of typical transceivers.
Linear Technology acquires Dust Networks
Linear Technology has acquired Dust Networks a provider of low-power wireless sensor network (WSN) technology.
24-V, 15-A monolithic synchronous step-down regulator offers differential output sensing and clock synchronization
Linear Technology Corporation has introduced a high frequency controlled on-time synchronous step-down DC/DC converter with differential output voltage sensing and clock synchronization. The controlled on-time, valley current mode architecture enables a fast transient response by increasing its operating frequency during a transient event, allowing the LTC3613 to recover from a large load step in only a few clock cycles.
Ultralow noise and spurious 350-MHz to 6-GHz integer-N PLL/synthesizer suppresses system noise
Linear Technology has unveiled a high performance 6 GHz integer-N frequency synthesizer with outstanding -226 dBc/Hz normalized closed-loop in-band phase noise, excellent -274 dBc/Hz normalized in-band 1/f noise, a wideband phase noise floor of -157 dBc/Hz and best-in-class -102 dBc spurious output. In a typical 900 MHz application, these performance attributes enable a closed-loop phase noise of -100dBc/Hz at 1kHz offset.
Dual synchronous buck controller provides complete DDR power solution, complies with DDR1/DDR2/DDR3 standards
Linear Technology Corporation has introduced the LTC3876 , a high-efficiency dual output synchronous step-down DC/DC controller that generates the VDDQ supply voltage, the VTT bus termination voltage and the VTTR reference voltage for DDR1/DDR2/DDR3 and future standard memory applications.
Video: Wide VIN range step-down regulators consume only 2.8 µA input current
Battery life is paramount in modern battery-powered systems. Portable applications, such as remote sensors, require voltage regulators which have low current standby states and also able to provide bursts of high power. Linear Technology's LT3970/LT3971 lead the industry in low current standby mode by consuming only 2.8 µA of input current when regulating a 3.3 V output with no load. The LT3970 and LT3971 have quiescent currents less than the self discharge rates of most batteries.
Isolated power factor corrected offline regulator requires no opto-isolator
Linear Technology Corporation has unveiled the LT3798, an isolated flyback controller with single stage active power factor correction (PFC). A power factor of greater than 0.97 is accomplished by actively modulating the input current, eliminating the need for an extra switching power stage and associated components. In addition, no opto-isolator or signal transformer is required for feedback since the output voltage is sensed from the primary-side flyback signal.
15-V, 300-mA synchronous buck converters consumes 1.8-uA of quiescent current
Linear Technology has introduced 15 V, fixed frequency synchronous buck converters capable of delivering 300 mA of continuous current to output voltages from 0.6 V to 13.8 V. The LTC3103 consumes 1.8 µA of quiescent current, while the LTC3104 (which offers a 10 mA programmable LDO output) requires only 2.6 µA of quiescent current.
Dual output synchronous step-down controller produces 1.5-V OUT from up to 24-V IN at 2-MHz
Linear Technology Corporation has introduced a high frequency controlled on-time dual output synchronous step-down DC/DC controller with differential output voltage sensing and clock synchronization. The controlled on-time, valley current-mode architecture enables a fast transient response by increasing its operating frequency during a transient event, enabling the LTC3838 to recover from a large load step in only a few clock cycles.
18-bit, 1.6-Msps, pseudo-differential serial SAR ADC achieves 96.5-dB SNR performance, consumes 18-mW of power
Linear Technology Corporation has introduced the LTC2369-18, a serial 18-bit, 1.6 Msps pseudo-differential SAR analog-to-digital converter (ADC), which achieves impressive 96.5 dB SNR and -120 dB THD while supporting a 0 V to 5 V unipolar input range. The pseudo-differential input simplifies the ADC driver requirement, enabling single-ended drive while benefiting from the reduction of unwanted signals common to both inputs.
14-bit 310-Msps dual ADC family enables linearization of 60-MHz transmit bandwidth using DPD
Linear Technology Corporation has introduced a family of dual ( LTC2158-14 ) and single ( LTC2153-14 ) high IF sampling 14-bit, 310 Msps analog-to-digital converters (ADCs) designed specifically for wide bandwidth digital predistortion (DPD) linearization applications.
36-V, 4-A synchronous step-down regulator tackles high temperature and high reliability demands
Linear Technology has released high temperature (H-grade) and High Reliability (MP-grade) versions of the companys LT3690 synchronous step-down switching regulator. The36 V input capable device can deliver up to 4 A of continuous output current at efficiencies as high as 93%.
Source/sink step-down regulator offers adjustable current limit benefits
Linear Technology has introduced a 36 V input constant frequency step-down µModule regulator with an adjustable output current limit up to 5 A. The adjustable current limit helps system designers set the maximum power delivered to a load, minimizing the output rating of the upstream AC/DC or DC/DC power supply.
Ultralow noise 373-MHz to 5.79-GHz Integer-N synthesizers feature integrated VCO to boost system performance
Linear Technology has unveiled the first device in a family of high performance integer-N frequency synthesizers with integrated VCO, delivering -226 dBc/Hz normalized closed-loop in-band phase noise, superior -274 dBc/Hz normalized in-band 1/f noise, and claiming best-in-class -103 dBc spurious output.
16-channel 50-mA buck LED driver offers dot correction and gray scale dimming
Linear Technology has introduce a 16-channel LED driver integrated with a 55 V step-down controller. The LT3745 LED driver powers up to 75 mA of LED current for each channel, which can drive up to 36 V of LEDs in series, making it ideal for applications such as large LED billboards.
100-V isolated monolithic flyback regulator focuses on high reliability applications
Linear Technology Corporation has introduced the high reliability (MP-grade) version of the LT3512 , a high voltage isolated monolithic flyback regulator that operates over a -55 to 150°C junction temperature range. The device simplifies the design of an isolated DC/DC converter.
Charge pump drives SAR ADCs to true zero on a single 5-V supply
Linear Technology has introduced a low noise, high speed amplifier that can drive to 0 V while maintaining high linearity on a single +5 V supply. The LTC6360s integrated ultralow noise charge pump provides an internal negative rail, eliminating the need for a negative supply.
2-MHz dual channel step-down regulator offers power-on reset and watchdog timer
Linear Technology Corporation has introduced a dual channel, current mode step-down switching regulator with a power-on reset and watchdog timer. The LT3641's 4 V to 42 V input voltage range with 55 V transient capability makes it ideal for load dump and cold crank conditions commonly found in automotive applications which require constant output regulation even with input transients as high as 55 V.
Isolated forward converter chipset simplifies design, enhances system reliability
Linear Technology Corporation has unveiled the LTC3765 and LTC3766 synchronous forward converter chipset with active clamp reset and Direct Flux Limit that prevents power transformer saturation under all conditions. The LTC3765 is a primary-side intelligent controller that works in concert with the LTC3766 to implement a robust and simple self-starting isolated power supply.
1-A synchronous buck-boost DC/DC converter delivers extended battery run time for Li-Ion and alkaline-powered devices
Linear Technology has introduced a synchronous buck-boost converter that delivers up to 1 A of output current from a Li-Ion/Polymer source or 300 mA from dual cell alkaline/NiCd/NiMH sources. The LTC3536s 1.8 V to 5.5 V input and output voltage range achieves a +/-1% accurate output with inputs above, below or equal to the regulated output.
High reliability adjustable shunt regulator operates across wide junction temperature range
Linear Technology Corporation has unveiled a new high reliability MP-grade version of the LT1431, a three-terminal adjustable shunt voltage regulator that operates across a -55 to 150°C junction temperature range. The device has a 100 mA sink capability, 0.4% initial reference voltage accuracy and a ±1.4% maximum voltage drift over temperature.
48-channel PWM generator with 12-bit resolution dynamically controls LEDs or provides 48 DAC outputs
Linear Technology has released a pulse width modulation (PWM) generator with 48 independent channels. Each channel has an individually adjustable 12-bit (4,096 steps) PWM register and a 6-bit (64 step) ±50% correction register. All controls are programmable via a simple TTL/CMOS
50 MHz serial data interface.
150-mA supercapacitor charger with auto cell balancing offers short term backup power
Linear Technology Corporation has introduced an inductorless supercapacitor charger with backup PowerPath controller for Li-ion or other low-voltage system rails in applications that require short term backup power. The LTC3226 employs a low-noise dual mode (1x/2x) charge-pump architecture with constant input current to charge two supercapacitors in series from a 2.5 V to 5.5 V input supply to a programmable capacitor charge voltage between 2.5 V and 5.3 V.
Synchronous step-down DC/DC controller supports wide operating junction temperatures
Linear Technology Corporation has introduced the H- and MP- grade versions of the companys LTC3851A, a wide input voltage range (4 V to 38 V) synchronous step-down DC/DC controller that encompasses a broad range of applications, including most intermediate bus voltages and battery chemistries. The onboard MOSFET gate drivers enable the use of high power external MOSFETs to produce output currents up to 25 A with output voltages ranging from 0.8 V to 5.5 V, ideal for point-of-load requirements.
Temperature-to-voltage converter measures remote diodes with 1 degree C accuracy
Linear Technology Corporation has introduced a high accuracy temperature-to-voltage converter with built-in series resistance cancellation for 2.5 V to 5.5 V systems. Many low voltage systems today rely on temperature to assess overall system health and reliability. Traditional implementations require a series of filters, a precise reference and a current source, resulting in a complex conversion scheme prone to inaccuracies if not carefully designed. The LTC2997 is a simple temperature monitoring solution that measures a remote diode's temperature with ±1°C accuracy or local temperature with ±1.5°C accuracy, and outputs a voltage proportional to absolute temperature. The LTC2997 provides a precise, space-saving, micropower temperature monitoring solution.
New switching regulator for DDR termination complies with DDR/DDR2/DDR3 standards
Linear Technology Corporation has introduced a high efficiency, monolithic synchronous step-down switching regulator, capable of generating a bus termination voltage for DDR/DDR2/DDR3 and future standard memory applications requiring sourcing and sinking of current.
60-V current sense amplifier offers adjustable fault flags
15-V, dual 3-A monolithic synchronous step-down regulator powers DDR1, DDR2 or DDR3 memory
Linear Technology has unveiled a high efficiency, dual-channel monolithic synchronous step-down regulator from Linear, which provides power supply and bus termination rails for DDR1, DDR2 and DDR3 SDRAM controllers. The LTC3634 operates from an input voltage from 3.6 V to 15 V, making it ideal for dual cell Li-Ion applications as well as 5 V and 12 V intermediate bus systems.
1.5-A negative LDO offers fast transient response and low output noise
Linear Technology Corporation has unveiled the LT3015, a 1.5 A negative low dropout linear regulator featuring fast transient response, low noise, and precision current limit. With its wide input voltage range of -1.8 V to -30 V and adjustable output voltage from -1.220 V to -29.5 V, the device's common emitter NPN power transistor design requires only a single supply and enables a low dropout voltage of 310 mV (typical at full load).
15-W I2C power manager charges Li-Ion cells at 3.5-A for tablets, UMPCs and portable power systems
Linear Technology Corporation has introduced a high power, I2C controlled, high efficiency PowerPath manager, ideal diode controller and lithium-ion battery charger for single-cell portable devices such as tablet PCs, ultra-mobile PCs (UMPCs), personal video players, smart phones, digital cameras, PDAs, portable medical and industrial devices and personal navigation devices.
Isolated forward converter ICs offer high reliability benefits
Linear Technology Corporation has released high reliability (MP-grade) versions of the company's LT1952/-1, LTC3900 and LT4430 devices that combine to create a high efficiency (up to 95%) synchronous rectified isolated forward converter that is specified and production tested over a -55 to 125°C operating junction temperature range.
26.8-dBm IIP3 dual broadband RF mixer draws 300-mW/channel for 4G MIMO multi-mode receivers
Linear Technology has introduced a dual high performance RF mixer that packs a combination of 26.8 dBm IIP3 (Input Third Order Intercept), 300 mW per mixer and wide operating frequency coverage to address high density footprints of multimode 4G RRH (Remote Radio Head) MIMO (Multiple-Input, Multiple-Output) receivers.
Wide VIN range flyback controller offers high reliability benefits
Linear Technology Corporation has unveiled the high reliability (MP-grade) version of the LTC3805/-5, a programmable frequency flyback controller that operates over a -55 to 150°C junction temperature range. The high-performance shunt regulated input voltage PWM (pulse width modulation) controller enables for wide input voltages ranging from 5 V to off-line applications and is ideal for users requiring one power supply for both 48 V and 24 V nominal input systems.
Quad independent resistor networks with guaranteed CMRR matching of 0.005 percent
Linear Technology has introduced the LT5400, the company's first family of precision matched resistors designed for high performance signal conditioning applications in difference amplifiers, precision dividers, references and bridge circuits.
No-opto 100-V isolated monolithic flyback regulator offer high reliability benefits
Linear Technology Corporation is launching a new high reliability (MP-grade) version of the LT3511, a high voltage isolated monolithic flyback regulator that operates over a -55°C to 150°C junction temperature range. The device simplifies the design of an isolated DC/DC converter since it needs no optocoupler, third winding or signal transformer for feedback, as the device's output voltage is sensed from the primary-side flyback signal.
Isolated 12-port PoE PSE controller chipset eliminates optos to reduce costs
Linear Technology Corporation has introduced an isolated 12-port Power Source Equipment (PSE) controller chipset designed for use in IEEE 802.3at (PoE+) Type 1 and Type 2 compliant Power over Ethernet (PoE) systems. The LTC4270/71 provides 12 independent PSE channels for simpler, lower component count designs, reduced board space and lower solution costs.
High linearity dual downconverting mixers reduce power consumption for 4G MIMO receivers
Linear Technology has unveiled the LTC559x family of four high dynamic range dual downconverting mixers covering the 600 MHz to 4.5 GHz wireless infrastructure frequency range. The LTC559x dual mixers offer outstanding IIP3 (Input Third-Order Intercept) of more than 26 dBm, low noise figures of less than 10 dB and high conversion gain of 8.5 dB, enabling excellent dynamic range performance for both MIMO (Multiple-Input, Multiple-Output) and diversity wideband receivers.
60-V battery charging controller offers power management benefits
Linear Technology Corporation has introduced the LTC4000, a high voltage controller and power manager that converts virtually any externally compensated DC/DC power supply into a full-featured battery charger. The LTC4000 is capable of driving typical DC/DC converter topologies, including buck, boost, buck-boost, SEPIC and flyback.
No RSENSE 60-V boost controller operates across a wide junction temperature range
Linear Technology Corporation has introduced the H-grade version of the LTC3872, a small footprint 550 kHz fixed frequency step-up DC/DC controller that is specified over a -40 to150°C junction temperature range. The LTC3872 accepts a 2.5 V to 9.8 V input voltage range and can produce an output voltage as high as 60 V without needing a sense resistor.
32-channel 30-mA buck LED driver offers DOT correction and gray scale dimming
Linear Technology has introduced a 32-channel LED driver integrated with a 55 V step-down controller. The LT3746 LED driver powers up to 30 mA of LED current for each channel, which can drive up to 13 V of LEDs in series, making it ideal for applications such as large LED billboards.
6-A N-channel MOSFET gate driver operates over a 55 to 125 degrees C junction temperature range
Linear Technology Corporation has introduced a new high reliability (MP-grade) version of the LTC4441, a 6A N-channel MOSFET gate driver that operates over a -55 to 125°C operating junction temperature range. The high power driver is designed to increase the output power and efficiency of a DC/DC controller, enabling it to drive high power N-channel MOSFETs or multiple MOSFETs in parallel.
Ultralow power 12-/14-bit 25-Msps-125-Msps ADCs operate at less than 100-mW at 125-Msps
Linear Technology Corporation has introduced a family of ultralow power 14-bit and 12-bit, 25 Msps to 125 Msps analog-to-digital converters (ADCs) that dissipate less than 1 mW per mega sample per second from a 1.8 V supply, making them the lowest power high speed ADCs on the market.
60-V step-down DC/DC converter drives three independent strings of 100-mA LEDs
Linear Technology has introduced a 60 V, 1 MHz, step-down DC/DC converter designed to operate as a three channel, constant current LED driver. Each channel of the LT3597 contains a constant current sink LED driver with a dedicated adaptive-output buck converter.
12-/10-/8-bit dual SPI/I2C DACs integrate precision reference in 8-lead 3-mm x 3-mm TSOT-23 package
Linear Technology Corporation introduces the LTC2632 and LTC2633 families of dual 12-bit, 10-bit and 8-bit rail-to-rail, voltage output digital-to-analog converters (DACs), with serial SPI (LTC2632) and I2C (LTC2633) interfaces.
Single/dual, 14-bit 250-Msps ADCs offer high SFDR undersampling performance
Linear Technology Corporation has introduced a family of dual and single high IF sampling 14-bit, 170 Msps, 210 Msps and 250 Msps analog-to-digital converters (ADCs) that maintain good SFDR performance at input frequencies up to 900 MHz. The LTC2152-14 and LTC2157-14 are single and dual channel simultaneous sampling ADCs, respectively, offering double data rate (DDR) LVDS digital outputs.
High-voltage isolated monolithic flyback regulator eliminates optocoupler
Linear Technology Corporation has introduced a high voltage isolated monolithic flyback regulator that simplifies the design of an isolated DC/DC converter. No optocoupler, third winding or signal transformer is required for feedback since the output voltage is sensed from the primary-side flyback signal.
100-V synchronous N-channel MOSFET drivers operate from -40 to 150 degrees C
Linear Technology Corporation has introduced the H-grade version of the LTC4444/-5, a high-speed, high input supply voltage (100 V), synchronous MOSFET gate driver designed to drive upper and lower power N-channel MOSFETs in synchronous rectified converter topologies.
36-VIN, 4-A (IOUT), 1.5-MHz synchronous step-down DC/DC converter offers quiescent current of 70-uA
Linear Technology Corporation introduces a 36 V input capable, synchronous step-down switching regulator which can deliver up to 4 A of continuous output current at efficiencies as high as 93%.
3-A LDO is easily paralleled for high output current without any hot spots
Linear Technology Corporation has unveiled a 3 A LDO that can be paralleled for heat spreading and higher output current, and is adjustable with a single resistor. The LT3083 regulator is based on the same innovative architecture as its 1.1 A predecessor, the LT3080, which uses a current source reference for single resistor output voltage setting. With the SET pins tied together, sharing the current and spreading the heat is accomplished between multiple regulators using a small length of PC trace as ballast, enabling multi-amp linear regulation in all surface-mount systems without heat sinks.
Dual output synchronous step-down DC/DC controller features digital power system management via I2C/PMBus
Linear Technology Corporation has unveiled a dual output high efficiency synchronous step-down DC/DC controller with I2C-based PMBus interface for digital power system management. The LTC3880/-1 claims to combine best in class analog switching regulator performance with precision mixed signal data conversion for ease of power system design and management, supported by the LTpowerPlay software development system with easy-to-use graphical user interface (GUI).
60-V synchronous step-down DC/DC controller is specified up to 150 degrees C
Linear Technology Corporation has introduced a high input voltage synchronous step-down DC/DC controller with guaranteed specifications for junction temperatures as high as 150 degrees C. The LTC3810H-5 employs a constant on-time valley current-mode control architecture, delivering low duty cycles and fast transient response with accurate cycle-by-cycle current limit without requiring a sense resistor.
18-Bit, 1.6-Msps, serial SAR ADC claims 101-dB SNR performance
Linear Technology Corporation has introduced a serial 18-bit, 1.6Msps SAR analog to digital converter (ADC) that claims to achieve an unrivaled 101 dB SNR and -118 dB THD while supporting a fully differential ±5 V input range.
3.3-V/5-V multiprotocol transceivers provide integrated switchable termination
Linear Technology Corporation has introduced the LTC2870 and LTC2871 multiprotocol transceivers with switchable integrated termination for 3.3 V and 5 V systems. RS485 systems require a termination resistor on the ends of the communication bus to minimize signal reflections.
15-GHz RF power detector offers 7-ns response time from a pulsed RF signal
Linear Technology has introduced a precision RF power detector that operates from 600MHz to 15GHz, with fast response time of 7ns from a pulsed RF signal. Moreover, the device has an on-chip fast comparator with a propagation delay of 9ns.
DC/DC uModule regulator delivers dual 8-A outputs from up to 26.5 VIN
Linear Technology Corporation introduces the LTM4628, µModule regulator containing two step-down 8 A DC/DC converter circuits with the inductors, MOSFETs and other necessary components in a 15mm x 15 mm x 4.32 mm LGA package. The low thermal impedance of the LGA package and high operating efficiency enable full output power DC/DC conversion from 12 VIN to 1 VOUT at 70 degrees C ambient with no air flow, or 86 degrees C ambient with 200 linear feet per minute.
16-bit 125-Msps ADCs reduce power to 185-mW
Linear Technology Corporation introduces three families of low power 16-bit, 25 Msps to 125 Msps analog-to-digital converters (ADCs) that dissipate approximately half the power of competing 16-bit solutions. The LTC2165 and LTC2185 families are single- and two-channel simultaneous sampling parallel ADCs, respectively, offering a choice of full-rate CMOS, or double data rate (DDR) CMOS/LVDS digital outputs with programmable digital output timing, programmable LVDS output current and optional LVDS output termination.
Step-down switching regulator with dual linear controllers optimize efficiency, avoids noise-sensitive frequency bands
Linear Technology Corporation has introduced a 2.6 A, 36 V step-down switching regulator with dual linear controllers, packaged in a 4 mm x 5 mm QFN or TSSOP-20E. The LT3694 operates from a VIN range of 4 V to 36 V with transient protection to 70 V, making it ideal for load dump and cold-crank conditions found in automotive applications.
15-VIN, 2.5-A synchronous buck-boost dc/dc converter offers 95 percent efficiency and low noise operation
Linear Technology has introduced a synchronous buck-boost converter that delivers up to 2.5 A of output current from a wide range of power sources, including single or multiple cell batteries, super capacitor stacks and wall adapters. The LTC3112 has a 2.7 V to 15 V input range and 2.5 V to 14 V output range that provides a regulated output with inputs above, below or equal to the regulated output.
Dual output step-down switching regulator delivers up to 3.5-A of continuous output current from each channel
Linear Technology Corporation has introduced a monolithic, dual output step-down switching regulator that can deliver up to 3.5 A of continuous output current from each channel. LT3692 operates from a VINrange of 3 V to 36 V with transient protection to 60 V, making it ideal for load dump and cold-crank conditions found in automotive applications. Independent input, shutdown, feedback, soft-start, current limit and comparator pins for each channel simplify complex power supply tracking/sequencing requirements.
Bidirectional current sense amplifier operates from -5-V to 80-V with 80-db of CMRR at 100-kHz
Linear Technology announces the LT1999, a high-voltage amplifier designed for bidirectional current sensing in the presence of fast switching common-mode voltages from -5 V to 80 V. The wide input common-mode range is obtained with standard low voltage op amp supplies.
Linear Technology and Energy Micro demonstrate smart energy harvesting solution
Linear Technology and Energy Micro have combined their expertise in energy harvesting power supplies and ultralow power 32-bit microcontrollers to produce a demonstration at Electronica 2010 that showcases the opportunities for smart energy harvesting applications.
60-V input synchronous step-down DC/DC controller draws 50-uA in battery-powered systems
Linear Technology Corporation has introduced a high voltage synchronous step-down DC/DC controller that draws only 50 µA in standby mode with the output in regulation. The LTC3891's 4 V to 60 V input supply range is designed to protect against high voltage transients, continue operation during automotive cold crank and cover a broad range of input sources and battery chemistries.
Synchronous boost controller offers up to 98 percent efficiency, eliminates heat sink
Linear Technology Corporation has unveiled a synchronous step-up DC/DC controller that replaces the boost diode with a high efficiency N-channel MOSFET. The device eliminates the heat sink normally required in medium to high power boost converters.
400-mA synchronous step-up DC/DC converter targets energy harvesting applications
A high performance, synchronous boost converter that incorporates maximum power point control (MPPC) and starts up with inputs as low as 250 mV has been unveiled by Linear Technology. The LTC3105 operates over a wide input range of 0.2 V to 5 V, making it ideal for harvesting energy from high impedance alternative power sources, including photovoltaic cells, thermoelectric generators (TEGs) and fuel cells.
RF-to-digital uModule receivers reduce size, cost and time-to-market for base station designs
Linear Technology has introduced two RF-to-digital uModule receivers that integrate the key components for 3G and 4G base station receivers (WCDMA, TD-SCDMA, LTE) and smart antenna WiMAX base stations. The LTM9004 and LTM9005 integrated uModule receivers offer a reduction in board space, integrating the RF mixer/demodulator, amplifiers, passive filtering and 14-bit, 125Msps ADCs in a small package.
Differential amplifier drives DC-coupled 100-MHz signals with low noise
Linear Technology has introduced a fully differential amplifier capable of driving DC to 100 MHz signals with 1.1 nV/√Hz noise and -88 dBc HD2/HD3 distortion. Built on an advanced SiGe BiCMOS process, the LTC6409 features 10 GHz gain-bandwidth product, 100 dB SFDR up to 40 MHz, and 1% settling time of 1.9 ns.
Polyphase synchronous boost controller eliminates heat sink with 97 percent efficiency
Linear Technology Corporation has unveiled a high power two phase single output synchronous step-up DC/DC controller that replaces the boost diodes with high efficiency N-channel MOSFETs. The LTC3787 eliminates the heat sink normally required in medium to high power boost converters.
Tiny PWM clock covers 3.81-Hz to 1-MHz
Digital monitor provides accurate measurement of temperature and voltage
Linear Technology Corporation has introduced an I2C temperature and voltage monitor for 3 V and 5 V systems.
16-bit, 1-Msps, low power SAR ADC features digital timing interface
Linear Technology Corporation has introduced an easy-to-use, low power 16-bit 1-Msps serial SAR ADC with guaranteed specifications over the -40 to 125 degrees C temperature range. Consuming 13 mW from a single 2.5 V supply, the LTC2383-16 achieves an 92 dB SNR and -106 dB THD from a fully differential +2.5 V input range while maintaining a maximum +2LSB INL and no missing codes.
New 200-MHz to 6-GHz direct conversion I/Q modulator achieves 30.9-dBm OIP3
Linear Technology has introduced a new generation ultra-high linearity direct conversion I/Q modulator that operates over a wide frequency range from 200 MHz to 6 GHz. The new modulator offers best-in-class linearity performance of 30.9 dBm OIP3 (Output Third-Order Intercept) at 2.14 GHz - without calibration.
6-GHz matched dual RMS detectors enable accurate VSWR measurements
Linear Technology has introduced a 40 MHz to 6 GHz dual channel, matched RMS power detector, offering over 55 dB isolation at 2.14 GHz. In RF power amplifier (PA) applications, the LTC5583 provides a simple solution for accurately measuring forward power, reverse power, and voltage standing wave ratio (VSWR).
Small one-shot pulse generator offers accurate timing for 1us to 33.6s
Linear Technology has released an accurate and tiny "one-shot" pulse generator, the latest member of the TimerBlox family of timing devices. The one-shot function, also known as a monostable multivibrator, is useful for accurate event timing, edge detection, and frequency discrimination.
Low frequency clock chip supports long duration timing from 1-ms to 9.5hrs
Linear Technology has unveiled a simple, accurate low frequency clock specifically designed for long duration timing applications. The LTC6991 is the latest part in the TimerBlox family of versatile silicon timing devices, in which an accurate programmable oscillator is combined with precision circuitry and logic.
Rail-to-rail SiGe op amps claim unmatched speed-power efficiency
Linear Technology has introduced single/dual/quad rail-to-rail operational amplifiers that claim to provide unmatched speed-power efficiency in tiny packages.
500-mA negative micropower LDO offers high reliability benefits
Linear Technology Corporation has released a new high reliability, military plastic MP-grade version of the LT1175, a 500mA negative micropower low dropout regulator.
Synchronous monolithic 1-cell Li-Ion/polymer battery charger delivers up to 4-A charge current
Linear Technology Corporation has introduced a 4-A monolithic synchronous buck battery charger for 1-cell Li-Ion/Polymer batteries. The LT3651-4.2 accepts inputs up to 32 V with a 40 V absolute maximum rating for added system margin.
Family of SOT23 devices offer simple timing Solutions
Linear Technology has unveiled a set of simple, small, accurate and low power devices for five commonly used timing functions: voltage-controlled oscillator, low frequency oscillator, pulse width modulated oscillator, monostable pulse generator (one-shot) and delay.
16-bit quad, I2C DAC with internal reference achieves +4LSB INL (Max)
Linear Technology Corporation has introduced a quad voltage output 16- and 12-bit digital-to-analog converter family with internal reference and I2C interface.
Eight-channel I2C-controlled PMIC supports portable processor systems
Linear Technology Corporation has introduced a complete power management solution for portable processors such as i.MX, PXA, ARM, OMAP and other advanced portable microprocessor systems.
Texas Instruments extends its leadership in power ICs market
Isolated monolithic flyback regulator simplifies design, eliminates optocoupler
Linear Technology Corporation has unveiled an isolated monolithic flyback switching regulator that simplifies the design of an isolated DC/DC converter.
3-A DC/DC uModule regulator is EN55022 Class B Noise Compliant
Linear Technology Corporation has introduced a complete 3 A DC/DC µModule regulator system, which in addition to the device's onboard inductor, DC/DC converter and supporting circuitry, includes an EMI filter that claims to make it compliant with EN55022 Class B by a wide margin.
6-A DC/DC uModule regulator offers tracking and phase-lockable frequency synchronization benefits
Linear Technology Corporation has introduced a 6 A DC/DC µModule regulator, which includes the inductor, MOSFETs, DC/DC regulator, input and output bypass capacitors and supporting circuitry in a 2.3g, 9mm x 15mm x 4.32mm LGA package.
Single-phase DC/DC Controller implements IMVP-6/6+/6.5
Linear Technology Corporation has introduced a single-phase synchronous step-down DC/DC controller implementing the Intel IMVP-6, IMVP-6+, and IMVP-6.5 protocols.
Triple output LED driver drives up to 24 x 500-mA LEDs
Linear Technology has released the H-grade version of the LT3496. The LT3496 is a 2 MHz DC/DC converter designed to operate as a three-channel constant current LED driver.
60-V step-down drives up to 30 100mA LEDs with 10,000:1 True Color PWM dimming
Linear Technology has introduced a 60 V, 1 MHz step-down DC/DC converter designed to operate as a constant current LED driver for up to 30 LEDs. From a 48 V input, the LT3596 can drive up to three strings of LEDs, each with up to ten 100 mA LEDs in series, delivering efficiencies of more than 90 percent.
Hot Swap controller protects low power boards
Linear Technology Corporation has introduced a Hot Swap controller for protecting low power boards with load supply voltages ranging from 2.9 V to 15 V.
DC/DC uModule regulator delivers 15-A from inputs down to 1.5-VIN
Linear Technology Corporation has unveiled a complete switch mode DC/DC µModule point-of-load regulator capable of generating its own 5 V N-channel MOSFET gate drive for efficient voltage conversion from 3.3 VIN or less to loads as low as 0.8 V at up to 15 A.
Flyback controllers in 6-pin ThinSOT package focus on military demands
Linear Technology Corporation is releasing high reliability military temperature (MP) grade versions of the LTC3803/-3/-5 current mode flyback controllers in the 6-pin ThinSOT package.
High dynamic range 10 GHz RMS detector offers accurate RF power measurement
Linear Technology has introduced a high dynamic range 10 GHz RMS detector that claims to set a new standard in measurement accuracy of RF signals.
80-V DC/DC converter targets boost, flyback, SEPIC and inverting power supplies
Linear Technology Corporation has released a high input voltage DC/DC converter for boost, flyback, SEPIC and inverting power supply applications.
Multiphase step-down DC/DC controller features differential remote sensing and active voltage positioning
Linear Technology Corporation has introduced a two-phase single output high efficiency (up to 95 percent) synchronous step-down DC/DC controller with PolyPhase operation, differential output voltage sensing and integrated phased-lock loop (PLL) synchronization.
Hot Swap controller enables I2C monitoring of board-level operations
Linear Technology Corporation has introduced a 2.9 V to 15 V Hot Swap controller that features an onboard 8-bit ADC and I2C compatible interface.
1-A VLDO offers output down to 0.2-V from 0.9-V input
Linear Technology Corporation has unveiled a 1 A low dropout linear regulator (VLDO), featuring input voltage capability down to 0.9 V and adjustable output voltage down to 0.2 V.
Three-phase step-down DC/DC controller targets high current rails
Linear Technology Corporation has introduced a three-phase single output high efficiency (up to 95 percent) synchronous step-down DC/DC controller with PolyPhase operation, differential output voltage sensing and integrated phased-lock loop (PLL) clock synchronization.
Digitally programmable 5A LDO features analog margining
Linear Technology Corporation has unveiled the second in a family of digitally programmable linear regulators that claims to offer the lowest dropout voltage, lowest noise and fastest transient response of any monolithic 5 A LDO currently available.
Dual 3-A, 4-MHz, synchronous step-down regulator supports DDR memory
Linear Technology has introduced a high efficiency, 4 MHz synchronous buck regulator that incorporates a constant frequency, current-mode architecture.
Hot swappable I2C isolator simplifies interfacing between busses with isolated grounds
Linear Technology has unveiled a hot swappable I2C isolator that provides bidirectional communication between two I2C busses whose grounds are isolated from one another.
Overvoltage/overcurrent protection controller safeguards low voltage portable devices
Linear Technology Corporation has introduced a 2.5 V to 5.5 V overvoltage and overcurrent protection controller designed to safeguard low voltage, portable electronics from damaging input voltage transients and current surges.
Virtual remote sense controller overcomes the need for remote sense wires
A Virtual Remote Sense (VRS) DC/DC controller that eliminates the remote sense wires required to compensate for the voltage drop in cables, wires and circuit board trace runs has been unveiled by Linear Technology Corporation.
High side current sense DC/DC converter drives high current LEDs
Linear Technology announces the H-grade version of the LT3517 which is a high side current sense DC/DC converter designed to drive high current LEDs at constant current.
16-Bit, 80-Msps ADC offers noise reduction in data conversion systems
Linear Technology Corporation has introduced a low-power 16-bit no missing codes, 80 Msps analog-to-digital converter (ADC) that dissipates only 89 mW, which the company claims is less than half the power of competing 16-bit solutions.
Synchronous step-down DC/DC converter accurately regulates output currents up to 20-A
Linear Technology has unveiled a synchronous step-down DC/DC converter designed to accurately (±6 percent) regulate output currents up to 20-A.
16-bit quad, SPI DAC achieves ±4LSB INL (Max)
A quad voltage output 16- and 12-bit digital-to-analog converter (DAC family) with internal reference and SPI interface has been introduced by Linear Technology Corporation.
Dual output synchronous step-down DC/DC controller draws 50 µA in battery-powered systems
Linear Technology Corporation has introduced the LTC3890/-1, a high voltage dual output synchronous step-down DC/DC controller that draws only 50 µA when one output is active and 60 µA when both outputs are enabled.
Battery gas gauges for single Li-ion cells offer one percent accuracy
Linear Technology Corporation has introduced the LTC2941/LTC2942 battery gas gauges with an I2C interface for 2.7 V to 5.5 V systems.
Dual, low noise, positive/negative ±20 VIN ±150 mA LDO offers 20 μVRMS noise
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