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High Voltage Step-Down Controller Optimize Intermediate Bus Efficiency

Hellmuth Witte Jul 27th 2015
The LTC®3886 is a High Voltage dual, PolyPhase DC/DC synchronous step-down switching regulator controller with PMBus compliant serial interface. It uses a constant frequency, current mode architecture with programmable loop compensation for excellent transient response and output regulation. Each PWM channel can produce ...

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Measuring Temperature Accurately

Bob Dobkin - Vice President of Engineering & CTO 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. ...

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Multi-chemistry Battery Charger Provides Battery Health and Power System Monitoring

Trevor Barcelo 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 ...

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Ultralow Noise and Ultrahigh PSRR

Amit Patel - Senior Design Engineer, Power Products 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 ...

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LTC3305 Lead Acid Battery Balancer - Video Product Brief

Tony Armstrong - Director of Product Marketing, Power Products Group 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 ...

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60V LED Driver with Internal 4A Switch for Automotive Lighting

Keith Szolusha - Applications Engineering Section Leader 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 ...

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Lead Acid Battery Balancer

Mark Vitunic - Design Manager 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 ...

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LT8709 Negative Input Synchronous Multi-Topology DC/DC Controller - Video Product Brief

Bruce Haug - Senior Product Marketing Engineer, Power Products Group 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 ...

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Interview with Linear Technology Co-Founder & CTO Bob Dobkin

Mar 25th 2015
This video interview with Linear Technology Co-Founder and Chief Technical Officer Bob Dobkin is part of the Computer History Museum’s oral history project and is posted on their website. The interview, covering the culture and technical focus of the company, was conducted in July 2014 by David Laws with the semiconductor ...

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LTC7860 High Efficiency Switching Surge Stopper - Video Product Brief

Bruce Haug - Senior Product Marketing Engineer, Power Products Group 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 ...

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LTC3899 Triple Output, 60VIN/60VOUT Low Iq, Synchronous Buck/Buck/Boost Controller - Video Product Brief

Bruce Haug - Senior Product Marketing Engineer, Power Products Group 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 ...

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High Bandwidth, Very Low Input Bias Current Op Amp

Roger Kidson - Evaluation Engineer, Signal Conditioning Products Mar 11th 2015
The LTC6268 is a new op amp with a unique combination of bandwidth, input and output characteristics. It has a gain bandwidth of 500MHz with a typical input bias current of only 3 femptoamps. The input capacitance is 0.45pF and the output can drive a 200Ω load. This combination of features can bring new levels of performance ...

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Electronica 2014 Interview with Bob Swanson

Robert Swanson Feb 4th 2015
Linear Technology Corporation founder Bob Swanson discusses the strategy that helps the company achieve the right products, in the right markets and the right results. ...

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Four-Channel PMBus Power System Manager with Input Energy Monitoring for Comprehensive Power System Management

Wayne Porter - Senior Design Engineer, Mixed Signal Products 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, ...

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Versatile Comparators Enable Fast Signal Detection, Level Translation and Clock Recovery

Asit Shankar - Senior Design Engineer, Signal Conditioning Jan 27th 2015
In this video, a new high speed CMOS output comparator family, the LTC6752, is introduced. The comparators exhibit extremely high toggle rates of 280 MHz and very low propagation delays of only 2.9ns. An overview of important features and specifications is presented. A brief description of each of the five members of the family ...

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Linear Technology Product Highlights

Jan 13th 2015
Linear Technology Corporation, a member of the S&P 500, has been designing, manufacturing and marketing a broad line of high performance analog integrated circuits for major companies worldwide for three decades. The Company’s products provide an essential bridge between our analog world and the digital electronics ...

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Reduce EMI with 42V, 5A Synchronous Step-Down Silent Switcher

Daniel Cheng - Design Engineer, Power Products Dec 12th 2014
The LT8640 is a 42V, 5A synchronous step-down regulator that features Silent Switcher architecture. Silent Switcher minimizes EMI emissions without metal shielding or slow switching edges. This results in good EMI performance with high efficiency at high switching frequencies. Peak efficiency for a 12VIN to 5VOUT application ...

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Rugged USB Isolation That Simply Works

Jeff Marvin - Burlington Design Center Manager Dec 12th 2014
The USB Port has become ubiquitous in computing and instrumentation equipment. However, it was not designed to operate in the harsh industrial or sensitive medical environments where USB is now being used. These environments demand galvanic isolation, high noise immunity and rugged transient and ESD protection. Linear Technology’s ...

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Simple, Compact & Efficient Isolated Power with Low IQ No-Opto Flyback ICs

Min Chen - Senior Design Engineer, Power Products 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 ...

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LTC3882 Dual, 38V PolyPhase Step-Down Voltage Mode Controller with Digital PSM - Video Product Brief

Bruce Haug - Senior Product Marketing Engineer, Power Products Group 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 ...

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LTC2983 TechClips - Universal Temperature Measurement System

Mike Mayes - Design Section Head, Mixed Signal Products 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 ...

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High Efficiency Buck-Boost Battery Charger

Charlie Zhao - Applications Section Leader, Power Products 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 ...

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A Very Low Power, High Performance I/Q Modulator

James Wong - Product Marketing Manager, High Frequency Products Nov 19th 2014
Modern digital transmitters take advantage of using high-order modulation to maximize data throughput rate while minimizing spectral bandwidth, thus allowing more efficient use of the frequency spectrum. I/Q modulators allow baseband signals to directly modulate onto the RF carrier. Such modulators typically suffer from excessive ...

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Low Power Precision Op Amp Allows Fast, Accurate Multiplexing

Kris Lokere - Applications Manager, Signal Chain Products Nov 19th 2014
If you need to measure many analog voltages, but not necessarily all at the same time, then a common approach is to multiplex these signals together into one output signal, so that you can then process and digitize each of these original voltage levels one at a time using shared circuitry. But doing this right requires some ...

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LTC3255 48VIN Fault-Protected 50mA Regulated Output Step-Down Charge Pump - Video Product Brief

Steve Knoth - Senior Product Marketing Engineer, Power Products Group 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 ...

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LT3999 36V, 1A 1MHz Push-Pull DC/DC Driver with Duty Cycle Control - Video Product Brief

Bruce Haug - Senior Product Marketing Engineer, Power Products Group 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 ...

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LTC3807 38V Micropower Synchronous Buck Controller with VOUT to 24V - Video Product Brief

Bruce Haug - Senior Product Marketing Engineer, Power Products Group 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 ...

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A Guide to Ordering Custom Programmed Digital Power System Management Devices

Bruce Haug - Sr. Product Marketing Engineer 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 ...

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More Power, Better Heat Dissipation, Smaller PCB Area

Yan Liang - Senior Applications Engineer, Power Products 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 ...

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High Power Three-Channel LED Driver

Keith Szolusha - Senior Applications Engineer, Power Products 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 ...

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LTC3245 2.7V to 38VIN, 250mA Buck-Boost Charge Pump - Video Product Brief

Steve Knoth - Senior Product Marketing Engineer, Power Products Group 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 ...

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LTC4020 55V Buck-Boost Multi-Chemistry Battery Charger - Video Product Brief

Steve Knoth - Senior Product Marketing Engineer, Power Products Group 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 ...

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LTspice: SOAtherm Tutorial

Dan Eddleman - Senior Applications Engineer 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 ...

Blog Post Video LTspiceIV 

 

Guide To Ordering LTC's Custom-Programmed EEPROM Devices

Bruce Haug - Senior Product Marketing Engineer, Power Products Group 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 ...

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LTC3769 60VIN/60VOUT Low IQ Synchronous Boost Controller - Video Product Brief

Bruce Haug - Senior Product Marketing Engineer, Power Products Group 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 ...

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LT4321 PoE Ideal Diode Bridge Controller - Video Product Brief

Alison Steer - Product Marketing Manager, Mixed Signal Products 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 ...

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LT4320 Ideal Diode Bridge Controller - Video Product Brief

Alison Steer - Product Marketing Manager, Mixed Signal Products 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 ...

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LT8471 Dual Multitopology Converter with 2A Switches - Video Product Brief

Jeff Gruetter - Senior Product Marketing Engineer, Power Products Group 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 ...

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High Speed DAC for Wide Bandwidth Signal Generation

Clarence Mayott - Applications Engineer, Mixed Signal Products Aug 25th 2014
The LTC2000 is the latest high speed DAC from Linear Technology. Its low noise and excellent spectral purity make it ideal for demanding signal-generation applications. The LTC2000 is a high performance DAC that can produce signals up to 1GHz with extremely low noise and very high spectral purity. It can be operated in single ...

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Interview with Linear Technology Co-Founders Bob Swanson and Bob Dobkin

Aug 8th 2014
This video interview with Linear Technology Co-Founders Executive Chairman Bob Swanson and Chief Technical Officer Bob Dobkin is part of the Computer History Museum’s oral history project and is posted on their website. The interview, covering the early years, history, culture and technical focus of the company, was ...

Video 

 

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