Solutions Search - Power Management
Quad 3A, Ultrathin uModule Regulator Fits on the Backside of PCB
Feb 17th 2017
The LTM4643 is a quad output step-down µModule® (power module) regulator, configurable as a single output (12A), dual (6A & 6A or 9A & 3A), or quad (3A each) regulator in a 9mm x 15mm x 1.82mm ultrathin LGA package. This flexibility enables system designers to rely on one simple and compact µModule ...
Dual Input Prioritizers with Built-In Battery Monitoring
Dec 8th 2016
Selecting the appropriate input supply to power a system with multiple input power sources is not a trivial task. This video discusses challenges associated with the supply selection process, also known as prioritization. The LTC4419 and its features are introduced to show case how the product solves key prioritization challenges ...
Low EMI LED Driver with Synchronous Internal 2A Switches
Nov 17th 2016
The LT3922 40V, synchronous, Silent Switcher low EMI LED driver meets the demands of the next generation of LED systems.
These LED drivers require more features and higher performance than ever before. Higher efficiency prolongs battery life and reduces heat in space-constrained applications. Wide voltage ranges are needed ...
40A μModule Regulator with, 88% Efficiency, 0% Derating at 85°C, and 40°C Rise
Oct 27th 2016
The LTM4636 is a 40A step-down µModule switching regulator with 3D packaging construction for quicker heat dissipation and cooler operation in a small package. By stacking its inductor on top of a 16mm x 16mm BGA package, the LTM4636 benefits from the exposed inductor as a heat sink permitting direct contact with airflow ...
LTC3871 Bidirectional PolyPhase® Synchronous Buck or Boost Controller - Video Product Brief
Oct 6th 2016
The LTC®3871 is a high performance bidirectional buck or boost switching regulator controller that operates in either buck or boost mode on demand. It regulates in buck mode from VHIGH-to-VLOW and boost mode from VLOW-to-VHIGH depending on a control signal, making it ideal for 48V/12V automotive dual battery systems. ...
LTC2947 ±30A Power/Energy Monitor with Integrated RSENSE - Video Product Brief
Sep 8th 2016
The LTC2947 is a high-precision power and energy monitor with an internal sense resistor supporting up to ±30A. Three internal No Latency Δ∑™ ADCs ensure accurate measurement of voltage and current, while highbandwidth analog multiplication of voltage and current provides accurate power ...
Prioritized PowerPath Controllers; LTC4417/4419/4420 - Video Product Brief
Sep 1st 2016
PowerPath™ prioritizers are low operating current circuits that provide backup switchover power for keeping critical circuitry alive during brown out and power loss conditions based on a user-defined priority. Priority is defined by pin assignment, with V1 assigned the highest priority and V3 the lowest priority. ...
30A Power and Energy Monitor with Integrated Sense Resistor
Aug 29th 2016
With more and more importance attributed to reduce energy consumption, power monitoring at various points of a system becomes mandatory. Precise power monitoring requires to measure the voltage drop over a current sense resistor as alternative concepts such as hall sensors or flux gate suffer from imperfections due to ...
LTC4282 Dual Path, High Current (100A) Hot Swap Controller with I2C Interface - Video Product Brief
Aug 25th 2016
The LTC4282 Hot SwapTM controller allows a board to be safely inserted and removed from a live backplane. Using one or more external N-channel pass transistors, board supply voltage and inrush current are ramped up at an adjustable rate. An I2C interface and onboard ADC allows for monitoring of board current, voltage, ...
Surge Stoppers: Overvoltage & Overcurrent Protection ICs - Video Product Brief
Aug 25th 2016
Historically, overvoltage and overcurrent protection (e.g., load dump protection) was achieved using bulky capacitors, TVS diodes and fuses, but this discrete solution consumes a lot of real estate, and does not offer continuous operation through transient events. Linear Technology's family of High Voltage Surge ...
LTC4233/LTC4234 10A/20A Hot Swap Controllers with Guaranteed Safe Operating Area (SOA) - Video Product Brief
Aug 25th 2016
The LTC®4233 and LTC4234 are integrated solutions for Hot Swap™ applications that allow a board to be safely inserted and removed from a live backplane. The parts integrate a Hot Swap controller, power MOSFET and current sense resistor in a single package for small form factor applications. The MOSFET ...
Low Voltage Power Supplies
Jun 9th 2016
In this video, Linear Technology Co-founder and CTO Bob Dobkin discusses low voltage power supplies less than half a volt. Most of today's power supplies have a reference of 0.6 volts, which means the output voltage must be greater than 0.6 volts. Several years ago, Linear Technology pioneered a new type of current source ...
LTC3895 150VIN, Synchronous Step-Down Controller with 40μA Iq - Video Product Brief
May 16th 2016
The LTC®3895 is a high performance step-down switching regulator DC/DC controller that drives an all N-channel synchronous power MOSFET stage that can operate from input voltages up to 140V (150V abs max). A constant frequency current mode architecture allows a phase-lockable frequency of up to 850kHz.
The ...
Buck-Boost DC/DC Converter with Intelligent PowerPath
May 16th 2016
The LTC3118 combines a low-loss PowerPath controller with a single inductor buck-boost converter, resulting in a compact platform for multiple input designs. The LTC3118’s unique switch architecture allows operation from higher or lower voltage on either input, to a regulated output voltage. The wide input/output voltage ...
Low Iq Surge Stopper for High Reliability Current Sensitive Applications
Apr 26th 2016
Protecting sensitive electronic circuitry from voltage transients is an essential part of any system, be it automotive, industrial, avionic or battery-powered portable applications. Linear Technology offers a wide variety of solutions for these applications with the Surge Stopper family. LTC4380 is the exciting new member ...
60V, 4A Monolithic Buck Regulator w/ Rail-to-Rail Programmable Output and Integrated Current Monitoring
Apr 12th 2016
The LTC3649 step-down regulator combines key features of a high voltage buck regulator with a complete feature set that allows for ease of use in a variety of applications. The output voltage can be programmed with one resistor from ISET to GND, or it can be programmed directly with a voltage on the ISET pin. The ...
5W Full Bridge AutoResonant Transmitter IC Simplifies Wireless Power Design
Mar 28th 2016
Wireless Power enables applications where it is difficult or impossible to use a connector to deliver power. Examples include products that need to operate in harsh environments or need to be cleaned or sterilized as well as products that are simply too small for a connector. However, integrated solutions for the transmitter ...
LTC7851/-1 Quad Output, Step-Down Voltage Mode DC/DC Controller with Accurate Current Sharing - Video Product Brief
Mar 17th 2016
The LTC®7851/LTC7851-1 are quad output multiphase synchronous step-down switching regulator controllers that employ a constant frequency voltage mode architecture. They maintain excellent current balance between channels when paralleled with their internal current sharing loop. Lossless DCR or a low value ...
LTC3892/-1 Dual, 60VIN Micropower Synchronous Buck Controller - Video Product Brief
Mar 3rd 2016
The LTC®3892/LTC3892-1/LTC3892-2 is a high performance dual step-down DC/DC switching regulator controller that drives all N-channel synchronous power MOSFET stages. Power loss and noise are minimized by operating the two controller output stages out-of-phase.
The gate drive voltage can be programmed from 5V to 10V ...
LTC2956 Wake-Up Timer with Pushbutton Control - Video Product Brief
Mar 1st 2016
The LTC®2956 is a micropower, wide input voltage range, configurable wake-up timer with pushbutton control. It periodically wakes up and turns on a connected system to perform tasks like monitoring temperature or capturing images. After completing the task, the LTC2956 turns the system off to conserve power.
The wake-up ...
LTC3877 2-Phase Synchronous Buck Controller with VID Programming & mΩ DCR Sensing - Video Product Brief
Mar 1st 2016
The LTC®3877 is a VID-programmable, constant frequency current mode step-down controller using an advanced and proprietary architecture. This new architecture enhances the signal-to-noise ratio of the current sense signal, allowing the use of very low DC resistance power inductors to maximize efficiency in high current ...
Simplify Your High Voltage DC/DC Converters to Save Battery Life
Jan 21st 2016
Linear Technology’s LT8330 and LT8331, two Low Quiescent current Boost/SEPIC/Inverting Converters, are specifically designed for Automotive, Industrial, Telecom and Portable applications. The LT8330 has a 1A, 60V power switch and an input range of 3-40V, while the LT8331 has a 500mA, 140V power switch and an input range ...
LTC4282 - High Current Hot Swap with I2C Compatible Monitoring
Dec 4th 2015
Hot Swap circuits are increasingly being used at power levels above 1000W. At these power levels multiple switch MOSFETs are required, but adding MOSFETs does not improve the power dissipation capability of the circuit when the current is regulated because the MOSFETs don’t inherently share current. The LTC4282 addresses ...
Quad Buck Regulators in an Impossibly Small Space
Nov 11th 2015
Frequently, the power supply gets whatever board space is left over regardless of how impossibly small. Using Linear’s latest Quad Buck regulator, the LT8602, you can have four regulated outputs in an incredibly small space. The LT8602 has two high voltage buck regulators with an input voltage range of 3V to 42V. It ...
60V 8-Switch Matrix LED Dimmer
Nov 10th 2015
LEDs are being used in current luxury model automotive headlights. Future automotive headlight designs include more powerful LEDs, more LEDs, and highly animated and multifunctional LED strings. These “matrix” LED headlights have the ability to change brightness and patterns. They allow control of individual LEDs ...
Measuring Temperature Accurately
Jul 8th 2015
Measuring temperature requires accurate high resolution measurement along with digital processing to convert sensor outputs to a known temperature scale. The LTC2983, digital temperature measurement system reduces error to a minimum, giving conformance to 0.1° C. Temperature measurement is as good as the sensor. ...
Multi-chemistry Battery Charger Provides Battery Health and Power System Monitoring
Jul 6th 2015
Batteries provide power to many different applications across a wide range of industries. While the sheer volume of consumer mobile devices tends to keep the spotlight on low voltage Li-ion powered applications, high performance and high reliability industrial, medical and military applications require a variety of ...
Ultralow Noise and Ultrahigh PSRR
Jun 17th 2015
When it comes to powering noise-sensitive analog/RF applications, low dropout (LDO) linear regulators are generally preferred over their switching counterparts. Low noise LDOs power a wide range of analog/RF designs, including frequency synthesizers (PLLs/VCOs), RF mixers and modulators, high speed and high resolution data ...
LTC3305 Lead Acid Battery Balancer - Video Product Brief
May 28th 2015
The LTC®3305 balances up to 4 lead acid batteries connected in series. All voltage monitoring, gate drive, and fault detection circuitry is integrated. The LTC3305 is designed for stand-alone operation and does not require any external control circuitry.
The LTC3305 employs an auxiliary battery or ...
Lead Acid Battery Balancer
Mar 31st 2015
Active balancing of series connected battery stacks exists for many common battery chemistries, but up until now not for lead acid. Skepticism abounds as to the need and benefit of active balancing for lead acid batteries but this skepticism is misplaced. As this video will show, series-connected lead acid batteries do require ...
60V LED Driver with Internal 4A Switch for Automotive Lighting
Mar 31st 2015
LED lighting is an important feature in today’s and future automobile designs. LED lighting is efficient, robust, attractive, and artistic. LED lighting is used in many different ways in a vehicle, namely high and low beam headlights, daytime running lights, signal lighting, brake lights, dashboard displays, heads up ...
LT8709 Negative Input Synchronous Multi-Topology DC/DC Controller - Video Product Brief
Mar 25th 2015
The LT®8709 is a synchronous PWM controller for negativeto- negative or negative-to-positive DC/DC conversion, with rail-to-rail output current monitor and control. The LT8709 is ideal for many local power supply designs. It can be easily configured in buck, boost, buck-boost, and inverting topologies with ...
LTC7860 High Efficiency Switching Surge Stopper - Video Product Brief
Mar 24th 2015
The LTC®7860 high efficiency surge stopper protects loads from high voltage transients. High efficiency permits higher currents and smaller solution sizes. During an input overvoltage event, such as a load dump in vehicles, the LTC7860 controls the gate of an external MOSFET to act as a switching DC/DC regulator ...
LTC3899 Triple Output, 60VIN/60VOUT Low Iq, Synchronous Buck/Buck/Boost Controller - Video Product Brief
Mar 24th 2015
The LTC®3899 is a high performance triple output (buck/ buck/boost) DC/DC switching regulator controller that drives all N-channel synchronous power MOSFET stages. The constant frequency current mode architecture allows a phase-lockable frequency of up to 850kHz. The LTC3899 operates from a wide 4.5V to 60V ...
Four-Channel PMBus Power System Manager with Input Energy Monitoring for Comprehensive Power System Management
Jan 30th 2015
Systems with multiple power rails are becoming more efficient, but increasingly complex and difficult to design. In such systems, operating costs and complexity have shifted the power system design paradigm. To adapt, groups of power supplies need to be controlled and monitored to manage efficiency, to coordinate sequencing, ...
Simple, Compact & Efficient Isolated Power with Low IQ No-Opto Flyback ICs
Dec 12th 2014
The flyback converter is typically the first choice for engineers looking for isolated power supplies below 50W. These isolated power supplies generally require opto-isolators or extra transformer windings to regulate the output voltage. As a result, these isolated power supply solutions are generally complicated, bulky and ...
LTC3882 Dual, 38V PolyPhase Step-Down Voltage Mode Controller with Digital PSM - Video Product Brief
Dec 3rd 2014
The LTC®3882 is a dual, PolyPhase DC/DC synchronous step-down switching regulator controller with PMBus compliant serial interface. It uses a constant frequency, leading-edge modulation, voltage mode architecture for excellent transient response and output regulation. Each PWM channel can produce output voltages ...
LTC2983 TechClips - Universal Temperature Measurement System
Nov 19th 2014
RTD TechClip
The LTC2983 is a highly accurate, simple to use, universal temperature measurement system. It directly interfaces to RTDs, applies the excitation current, simultaneously measures the RTD and sense resistor, and reports the results in degrees C or F. It does not require any external references, buffers, or level ...
High Efficiency Buck-Boost Battery Charger
Nov 19th 2014
Today’s battery chargers are expected to support a variety of battery chemistries and accept a range of input voltages. In many applications, the input voltage range can vary from below the output battery voltage to above the battery voltage, requiring both step-down and step-up capability. In this video, we will show ...
LTC3255 48VIN Fault-Protected 50mA Regulated Output Step-Down Charge Pump - Video Product Brief
Nov 18th 2014
The LTC®3255 is a switched-capacitor step-down DC/DC converter that produces a regulated output (2.4V to 12.5V adjustable) from a 4V to 48V input. In applications where the input voltage exceeds twice the output voltage, 2:1 capacitive charge pumping extends output current capability beyond input supply current ...
LT3999 36V, 1A 1MHz Push-Pull DC/DC Driver with Duty Cycle Control - Video Product Brief
Nov 18th 2014
The LT®3999 is a monolithic, high voltage, high frequency DC/DC transformer driver providing isolated power in a small solution footprint.
The LT3999 has two 1A current limited power switches that switch out of phase. The duty cycle is programmable to adjust the output voltage. The switching frequency is programmed ...
LTC3807 38V Micropower Synchronous Buck Controller with VOUT to 24V - Video Product Brief
Nov 18th 2014
The LTC®3807 is a high performance step-down switching regulator DC/DC controller that drives an all N-channel synchronous power MOSFET stage. A constant frequency current mode architecture allows a phase-lockable frequency of up to 750kHz.
The 50μA no-load quiescent current extends operating run time in ...
A Guide to Ordering Custom Programmed Digital Power System Management Devices
Oct 30th 2014
Digital power system management is being adopted in the marketplace because of its ability to provide accurate information about the power system and to autonomously control and supervise dozens of voltage rails with ease. Having digital control over analog power supplies with a simple PC connection is valuable during the ...
More Power, Better Heat Dissipation, Smaller PCB Area
Oct 28th 2014
System engineers strive to increase performance with each successive product generation to maintain competitiveness. A major hurdle in that effort for densely populated boards such as ATCA, µTCA and mezzanine cards is finding PCB area to mount the additional ICs and components (memory, processors, data ports) necessary ...
High Power Three-Channel LED Driver
Oct 27th 2014
Large arrays of LEDs require high power and multi-string LED drivers. When many single channel, high power converters are used in an application, a better solution may be to reduce the cost and number of components by using a single converter with several drivers on the same IC. Eliminating or reducing duplication of features ...
LTC3245 2.7V to 38VIN, 250mA Buck-Boost Charge Pump - Video Product Brief
Oct 15th 2014
The LTC3245 is a switched capacitor buck-boost DC/DC converter that produces a regulated output (3.3V, 5V or adjustable) from a 2.7V to 38V input. The device uses switched capacitor fractional conversion to maintain regulation over a wide range of input voltage. Internal circuitry automatically selects the conversion ...
LTC4020 55V Buck-Boost Multi-Chemistry Battery Charger - Video Product Brief
Oct 15th 2014
The LTC®4020 is a high voltage power manager providing PowerPath™ instant-on operation and high efficiency battery charging over a wide voltage range. An onboard buck-boost DC/DC controller operates with battery and/or system voltages above, below, or equal to the input voltage.
The LTC4020 seamlessly manages power ...
LTspice: SOAtherm Tutorial
Oct 8th 2014
Verifying that a Hot Swap design does not exceed the capabilities of a MOSFET is a challenge at high power levels. Fortunately, thermal behavior and SOA may be modeled in circuit simulators such as LTspice IV® . The SOAtherm-NMOS symbol included in LTspice contains a collection of MOSFET thermal models developed by Linear ...
Guide To Ordering LTC's Custom-Programmed EEPROM Devices
Sep 11th 2014
Click Here To Order Custom Programmed Parts
Welcome to Linear Technology’s NVM (Non-Volatile Memory) Programming Service video product brief tutorial for Digital Power System's Management Products. This tutorial will go through the process of ordering custom-programmed first articles or prototypes. Devices eligible ...
LTC3769 60VIN/60VOUT Low IQ Synchronous Boost Controller - Video Product Brief
Sep 11th 2014
LTC®3769 is a high performance single output synchronous boost converter controller that drives an all N-channel power MOSFET stage. Synchronous rectification increases efficiency, reduces power losses and eases thermal requirements, simplifying high power boost applications. The 28μA no-load quiescent current ...
LT4321 PoE Ideal Diode Bridge Controller - Video Product Brief
Sep 11th 2014
The LT®4321 is a dual ideal diode bridge controller that enables a Power over Ethernet (PoE) powered device (PD) to receive power in either voltage polarity from RJ-45 data pairs, spare pairs, or both. The LT4321 and eight N-channel MOSFETs replace the eight diodes in a passive PoE rectifier bridge. The LT4321 ...
LT4320 Ideal Diode Bridge Controller - Video Product Brief
Sep 11th 2014
The LT®4320/LT4320-1 are ideal diode bridge controllers that drive four N-channel MOSFETs, supporting voltage rectification from DC to 600Hz typical. By maximizing available voltage and reducing power dissipation (see thermograph comparison below), the ideal diode bridge simplifies power supply design and reduces ...
LT8471 Dual Multitopology Converter with 2A Switches - Video Product Brief
Aug 29th 2014
The LT®8471 is a dual PWM DC/DC converter containing two internal 2A, 50V switches and an additional 500mA switch to facilitate step-down and inverting conversion. Each 2A channel can be independently configured as a buck, boost, SEPIC, flyback or inverting converter. Capable of generating positive and negative ...
Active Clamp Synchronous Forward Controllers
Jun 18th 2014
The LT3752, LT3752‑1 and LT3753 are active clamp forward controllers that minimize external component count, solution size and cost. Two of these controllers, the LT3752 and LT3753, are designed for inputs up to 100V. The LT3752-1 is designed for applications with input voltages greater than 100V, suitable for HV car ...
LTC3875 Dual, 2-Phase, Synchronous Step-Down Controller with Sub-mΩ DCR Sensing & Temperature Compensation - Video Product Brief
May 29th 2014
The LTC®3875 is a dual output current mode synchronous step-down DC/DC controller that drives all N-channel synchronous power MOSFET stages. It employs a unique architecture which enhances the signal-to-noise ratio of the current sense signal, allowing the use of very low DC resistance power inductors to maximize ...
LTC3874 PolyPhase Step-Down Synchronous Slave Controller with Sub-mΩ DCR Sensing - Video Product Brief
May 28th 2014
The LTC®3874 is a dual PolyPhase® current mode synchronous step-down slave controller. It enables high current, multi-phase applications when paired with a companion master controller by extending the phase count. Compatible master controllers include the LTC3866, LTC3875 and LTC3774. The LTC3874 employs a unique architecture ...
LTC3870 PolyPhase Step-Down Slave Controller for LTC Digital Power System Management Master Controllers - Video Product Brief
May 28th 2014
The LTC®3870 is a PolyPhase® step-down slave controller specially designed for multiphase operation with the LTC3880 and LTC3883 digital power system management DC/DC controllers. It provides a small and cost effective solution for supplying very large currents by cascading it with a LTC3880 or LTC3883 controller. ...
LTC3784 4.5V to 60VIN 2-Phase (10A/Phase) Boost Controller - Video Product Brief
May 28th 2014
The LTC®3784 is a high performance PolyPhase® single output synchronous boost converter controller that drives two N-channel power MOSFET stages out-of-phase. Multiphase operation reduces input and output capacitor requirements and allows the use of smaller inductors than the single-phase equivalent. Synchronous ...
LTM8052 TechClips - Output Current Limit Protection
May 9th 2014
The user adjustable current limit of the LTM8052 is a useful protection feature should the load become compromised due to cracked, worn or otherwise damaged wiring insulation. With a 24V input supply and current limit set at 4.8A, the thermal rise of the module stabilizes at 34°C above ambient with no forced airflow while ...
LTM8050 TechClips - 58V, 2A Step-Down μModule Regulator
Apr 30th 2014
Inverting (Negative) Outputs
With a relatively wide input voltage and output voltage range, the LTM8050 is well suited for Inverting applications when a negative output voltage is desired. Watch the LTM8050 deliver a -12V output at 1.5A from a 24V Input with 83% efficiency and just a 54°C temperature rise over ambient.
Highly ...
LTM4644 TechClips - Efficiency and Thermal Performance
Apr 13th 2014
The LTM4644 is a quad 4A step-down µModule regulator configurable as a quad, triple, dual or single output power supply in a small 9 x 15 x 5.01mm BGA. The high number of output options available in one package caters to the needs of FPGAs, ASICs and image sensors. Configured as a quad output, observe how the LTM4644 ...
LTM4624 TechClips - Efficiency, Thermal and Load Transient Performance
Apr 13th 2014
The LTM4624 is a 4A step-down µModule regulator in a tiny 6.25 x 6.25 x 5.01mm package. Requiring just two 1206 case size ceramic capacitors and a 0603 resistor for operation, the LTM4624 step-down solution requires less than one square centimeter on a single sided PCB. Watch the LTM4624 deliver greater than 80% efficiency ...
MOSFET Failure Protection for Single Output PolyPhase Converter
Mar 19th 2014
The low output voltage rails in many of today’s leading edge communication, networking, computer and industrial systems must be designed to meet the competing demands of higher load current, higher efficiency and diminishing amounts of board real estate. For cases where the load current is high, the most effective approach ...
How to Probe the Switch Node of a μModule Regulator
Mar 4th 2014
A common step in verifying if a power management circuit functions properly is to probe the switch node. But how does one perform that task on a power µModule regulator since the switch node is often not accessible? Using the LTM4611 as an example, Alan Chern explains how starting at the 42 second mark in this video he ...
LTM4620 TechClips - Dual 13A or Single 26A DC/DC μModule Regulator
Mar 4th 2014
LTM4620 Current Sharing
Two LTM4620 µModule regulators sharing current during start up, steady state and shut down.
LTM4620 Efficiency
With 20V input and 1.2V output, the efficiency is measured across a range of load current. At 100A load current, the efficiency is measured at 83%.
LTM4620 ...
80V Synchronous SEPIC/Inverting/Boost Controller IC with 3 Regulation Loops
Feb 10th 2014
In today’s modern electronic systems, the need for power conversion circuits that can do more than simply convert one voltage to another is growing. Some systems require a constant current output, or a constant voltage output, others may require the current to flow from input to output or output to input. All of these ...
1.5A LDO+ Regulator Monitors Current & Temperature
Feb 5th 2014
LDO+ regulators do more than just regulate. They include monitor and control functions as well as regulation. The LT3081 has a wide safe area, allowing operation with high currents at high input-output differentials. Output voltage is adjustable from from 0 to 37 volts and it withstands reverse voltage. In addition to regulating, ...
2.1A LDO+ Regulator Features Cable Drop Compensation and Monitors Current & Temperature
Feb 5th 2014
This video explores the LT3086, a new member of our LDO+ family. It provides many functions in addition to regulation. It can monitor and externally limit both temperature and output current, has an accurate power good output, and can compensate for wire drops between the regulator and the load. It sources up to 2.1A of output ...
Spread Spectrum Frequency Modulation Reduces Automotive LED Driver EMI
Dec 30th 2013
The large number of electronics in an automobile must have reasonably low electromagnetic interference (EMI) in order to avoid disturbing the radio reception, GPS navigation tools and other forms of communication and broadcast. Switch mode regulators are commonly used in this environment and they have to be designed to mitigate ...
Wireless Power Receiver Enables Compact and Efficient Contactless Battery Charging
Dec 30th 2013
Batteries provide power to many different applications across a wide range of industries. Wireless charging enables those applications where it is difficult or impossible to use a connector. Examples include products that need to operate in harsh environments or need to be cleaned or sterilized as well as products that are ...
LTC3774 Dual, Multiphase,Synchronous Current Mode Controller for Sub-mΩ DCR Sensing
Dec 19th 2013
The LTC®3774 is a dual PolyPhase® current mode synchronous step-down switching regulator controller that drives power blocks, DRMOS or external gate drivers and power MOSFETs. It offers an LTC-proprietary technique that enhances the signal-to-noise ratio of the current sense signal, allowing the use of inductors ...
LT8302 42VIN Micropower No-Opto Isolated Flyback Converter with 65V/3.6A Switch - Video Product Brief
Dec 17th 2013
The LT®8302 is a monolithic micropower isolated flyback converter. By sampling the isolated output voltage directly from the primary-side flyback waveform, the part requires no third winding or opto-isolator for regulation. The output voltage is programmed with two external resistors and a third optional temperature ...
LTM4611 TechClips - Ultralow VIN, 15A DC/DC μModule Regulator
Nov 5th 2013
15A High Efficiency Output from a Low Input Voltage
The LTM4611 is a switch mode, step-down DC/DC μModule® regulator in a compact 15mm × 15mm × 4.32mm LGA surfacemount package. The switching controller, MOSFETs, inductor and supporting components are housed in the package. With a built-in differential remote ...
Low Noise Rail-to-Rail Negative Regulator with Programmable Current Limit
Nov 4th 2013
The LT®3090 is a low noise single resistor programmable negative regulator based upon current reference architecture. The advantage of this architecture is that output voltage is rail-to-rail programmable while always maintaining unity gain operation. Hence, the bandwidth/transient response, noise, PSRR and load regulation ...
What Is Digital Power System Management?
Nov 4th 2013
Power management of a high rail count circuit board can be very difficult with meters and oscilloscopes. There is a growing trend to configure and monitor power supplies over a digital communications bus. “Digital Power” or “Digital Power System Management (PSM)” allows systems designers to simplify ...
LT4321/LT4275 LTPoE++/PoE+/PoE PD Controller TechClips
Oct 24th 2013
Power over ethernet is a continuing trend in the Ethernet world. The current IEEE standard allows for up to 25.5W of PD input power. LTPoE++ is Linear Technology's solution to meet the demand for greater power with 38.7W, 52.7W, 70W and 90W power levels.
Heat generated by Power Over Ethernet powered device (PD) ...
LTC3676 8-Output PMIC For Application Processors - Video Product Brief
Oct 24th 2013
The LTC®3676 is a complete power management solution for advanced portable application processor-based systems. The device contains four synchronous step-down DC/DC converters for core, memory, I/O, and system on-chip (SoC) rails and three 300mA LDO regulators for low noise analog supplies. The LTC3676-1 has a ±1.5A ...
LTC3129 15V, 200mA Synchronous Buck-Boost Converter with 1.3uA Iq - Video Product Brief
Sep 23rd 2013
The LTC®3129-1 is a high efficiency, 200mA buck-boost DC/DC converter with a wide VIN and VOUT range. It includes an accurate RUN pin threshold to allow predictable regulator turn-on and a maximum power point control (MPPC) capability that ensures maximum power extraction from non-ideal power sources such as photovoltaic ...
LT3081 1.5A Single Resistor Rugged Linear Regulator with Monitors - Video Product Brief
Jul 30th 2013
The LT3081 is a 1.5A low dropout linear regulator designed for rugged industrial applications with monitoring and protection features. Key features of the device are the extended safe operating area, wide input and output voltage ranges, output current monitor, temperature monitor and programmable current limit. The LT3081 ...
Power USB VBUS in Autos with the LT8697
Jul 15th 2013
USB sockets appear in an increasing number of car models as portable devices become more ubiquitous. The USB interface delivers power to portable devices via the 5V VBUS and ground lines. Depending on the USB version and the portable device, the VBUS sources up to 2.1A. In a car, this high VBUS current presents a challenge. ...
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