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Solutions Search - Space and Harsh Environment

105V, 2.3A Low-EMI Synchronous Step-Down Regulator

Charles Hawkes - Design Aug 16th 2017
Today, many electronic systems require power processing at higher voltages, while simultaneously demanding increased efficiency and low EMI/EMC emissions. The LTC7103 meets all of these challenges, with an unprecedented combination versatility and simplicity. The LTC7103 is a 105V, 2.3A, synchronous step-down regulator that ...

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Micropower Zero-Drift Amplifier Improves Circuit Performance

Andrew Roberts - Design Engineer Jul 10th 2017
This video explores the superior performance achieved with the LTC2063 zero-drift amplifier in a wide variety of low power applications. The LTC2063 enables precision measurement at extremely low power levels. The LTC2063 operates from 1.7V to 5.25V and features a shutdown mode which is optimized for battery-powered and duty-cycled ...

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Fast 150V Protected High Side Driver

Mark Mullen - Sr Design Engineer, Power Products Jun 9th 2017
The LTC7000 is a fast, protected, high side N-channel MOSFET gate driver that contains an internal charge pump allowing the external N-channel MOSFET to stay on indefinitely. The LTC7000 receives a low voltage digital input signal and can fully turn-on or turn-off a high-side N-channel MOSFET whose drain can be 135V above ...

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Buffered Octal ADC Inputs Simplify Sensor Interfaces

Andrew Thomas - Design Engineer Apr 19th 2017
Many systems using a precision analog-to- digital converter to digitize signals need some signal conditioning circuitry between the signal source and the ADC. In addition to its other functions, that circuitry must accurately drive the input of the ADC. The combined demands of performance and high speed to handle the ADC input ...

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100V, Bidirectional Multiphase Synchronous Buck or Boost Controller

Ding Li - Senior Power Applications Engineer, Power Products Mar 31st 2017
Current 12V automotive systems are reaching their 3kW power limit due to the ever-increasing demand for more electrical devices. A newly proposed standard, LV148, combines a secondary 48V bus with the existing 12V system. Benefits of this technology include increased available energy that allows for more electrical circuits ...

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Quad 3A, Ultrathin uModule Regulator Fits on the Backside of PCB

Richard Ying - µModule® Regulator Design Engineer 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 regulator ...

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Low EMI LED Driver with Synchronous Internal 2A Switches

Keith Szolusha - Applications Engineering Section Leader 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 ...

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Precision Dual Output, High Current, Low Noise, Low Drift Reference

Michael B. Anderson - Senior IC Design Engineer Nov 1st 2016
Precision and mixed signal applications usually require a voltage reference and at times several regulators or LDOs to support the analog circuitry. Separate regulators isolate the analog supply, digital supply and the voltage reference. The voltage reference supports the reference inputs of DACs and ADCs, and other devices ...

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LTC3871 Bidirectional PolyPhase® Synchronous Buck or Boost Controller - Video Product Brief

Bruce Haug - Product Marketing Engineer 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. An ...

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Prioritized PowerPath Controllers; LTC4417/4419/4420 - Video Product Brief

Pinkesh Sachdev - Product Marketing Engineer - Mixed Signal 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. ...

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Surge Stoppers: Overvoltage & Overcurrent Protection ICs - Video Product Brief

Pinkesh Sachdev - Product Marketing Engineer - Mixed Signal 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 Stoppers, ...

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LTC4233/LTC4234 10A/20A Hot Swap Controllers with Guaranteed Safe Operating Area (SOA) - Video Product Brief

Pinkesh Sachdev - Product Marketing Engineer - Mixed Signal 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 Safe ...

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Low Voltage Power Supplies

Robert Dobkin - Chief Technical Officer 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 reference ...

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LTC3895 150VIN, Synchronous Step-Down Controller with 40μA Iq - Video Product Brief

Bruce Haug - Product Marketing Engineer 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 gate drive ...

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Buck-Boost DC/DC Converter with Intelligent PowerPath

James Noon - Applications Engineering Section Leader 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 ...

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Low Iq Surge Stopper for High Reliability Current Sensitive Applications

Hamza Salman Afzal - Applications Engineer 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 of ...

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Voltage Reference: Performance Plus Features

Brendan Whelan - Design Manager Mar 28th 2016
Demand for higher performance in mixed-signal circuits requires ever-better voltage references. But the highest-performance references of yesterday aren’t suitable, as they are generally simple products with few additional features. With the development of high-performance bandgap references, plus improvements in process ...

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LTC3892/-1 Dual, 60VIN Micropower Synchronous Buck Controller - Video Product Brief

Bruce Haug - Product Marketing Engineer 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 to allow ...

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Simplify Your High Voltage DC/DC Converters to Save Battery Life

Jesus Rosales - Applications Engineer 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 ...

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60V 8-Switch Matrix LED Dimmer

Keith Szolusha - Applications Engineering Section Leader 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 ...

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Simultaneously Digitize Eight High-Voltage Arbitrary Swing Signals

Micah O'Halloran - SAR ADC Design Section Lead Oct 21st 2015
Many common monitoring and control applications require multiple analog input signals to be simultaneously sampled and digitized, preserving time-domain correlation and frequency-domain phase relationships between the signals in the digital domain. The LTC2348-18 is designed specifically for these applications. The device simultaneously ...

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Wide Common Mode Range Current Sensing

John Fiorenza - Design Engineer Oct 21st 2015
The LT6375 difference amplifier enables very accurate wide common mode current sensing applications. Its superior performance compared to alternative industry standard difference amplifiers translates into better accuracy in demanding current sensing measurement applications. The LT6375 is a flexible general purpose difference ...

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Driving High Resolution SAR ADCs

Tyler Hutchison - Signal Conditioning Design Engineer Sep 8th 2015
Driving high resolution SAR ADCs often requires tradeoffs between power consumption, linearity, and noise.  The LTC6363 provides 20 bit accuracy when the system designer pays close attention to the interface filter between the driver and the ADC.  Calculations and empirical data provide additional insight as to how ...

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Ultralow Noise and Ultrahigh PSRR

Amit Patel 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 converters ...

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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 displays, ...

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LTC7860 High Efficiency Switching Surge Stopper - Video Product Brief

Bruce Haug - Product Marketing Engineer 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 - Product Marketing Engineer 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 input supply ...

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High Bandwidth, Very Low Input Bias Current Op Amp

Roger Kidson - Product Evaluation Engineer 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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Versatile Comparators Enable Fast Signal Detection, Level Translation and Clock Recovery

Asit Shankar - Senior Design Engineer 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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Rugged USB Isolation That Simply Works

Jeff Marvin - 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 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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Low Power Precision Op Amp Allows Fast, Accurate Multiplexing

Kris Lokere - Strategic Applications Manager 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 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 limits. ...

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

Bruce Haug - Product Marketing Engineer 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 - Product Marketing Engineer 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 battery-powered ...

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More Power, Better Heat Dissipation, Smaller PCB Area

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

Steve Knoth - Senior Product Marketing Engineer 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 ratio ...

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

Bruce Haug - Product Marketing Engineer 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 extends ...

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LT4321 PoE Ideal Diode Bridge Controller - Video Product Brief

Alison Steer - Product Marketing Manager 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 eases ...

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LT4320 Ideal Diode Bridge Controller - Video Product Brief

Alison Steer - Product Marketing Manager 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 power ...

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140V CMOS Op Amp with Rail-to-Rail Output & pA Inputs

Arnold Nordeng - Design Section Leader - Signal Conditioning Jun 26th 2014
The LTC6090 high voltage CMOS op amp is the highest voltage monolithic op amp in the industry. It has a number of unique characteristics not found in other CMOS op amps. Unlike other CMOS amplifiers whose fine transistor geometries limit power supply operation to 5V, the LTC6090 is built on Linear Technology’s proprietary ...

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16-Channel, 16/12-Bit Voltage Output DACs in a Tiny 6mm x 6mm Package

Mark Thoren - Staff Scientist Jun 6th 2014
General-purpose DACs address a wide range of applications including instrumentation, industrial control, and setting voltages and currents in all manner of analog circuits. In this video, we demonstrate the 16-/12-bit LTC2668, a 16-channel, voltage output DAC with five software-programmable (SoftSpan™) or pin-configurable ...

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LTM2884/LTP2884 Isolated USB Transceivers with Isolated Power - Video Product Brief

Chris Gobok - Product Marketing Engineer Jun 5th 2014
The LTM®2884 is a complete galvanically isolated USB 2.0 compatible μModule® (micromodule) transceiver. An upstream supply powers both sides of the interface through an integrated, isolated DC/DC converter. The LTM2884 is ideal for isolation in host, hub, bus splitter or peripheral device applications. It is compatible ...

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LTC3784 4.5V to 60VIN 2-Phase (10A/Phase) Boost Controller - Video Product Brief

Bruce Haug - Product Marketing Engineer 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 rectification ...

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LTM8052 TechClips - Output Current Limit Protection

Walker Bai - Applications Enginneer
Willie Chan - Sr PME Power Modules
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 ...

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LTM8050 TechClips - 58V, 2A Step-Down μModule Regulator

Willie Chan - Sr PME Power Modules
Dong Wang - Applications Engineer
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 ...

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LTspice: SAR ADC Driver Interface

Kris Lokere - Strategic Applications Manager Apr 3rd 2014
High-performance SAR ADCs can offer amazing dynamic range and linearity at faster and faster sample rates. But how do you design the amplifier and interface at the analog inputs? LTspice IV can help. This video shows how to use LTspice to simulate the analog input interface of high-performance SAR ADCs. We will look at charge ...

Blog Post Video LTspice 

 

MOSFET Failure Protection for Single Output PolyPhase Converter

Mike Shriver - Senior Applications Engineer 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 ...

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Single-Ended to Differential Conversion Using Differential Op Amps

Kris Lokere - Strategic Applications Manager Jan 13th 2014
Differential op amps are important building blocks in modern analog and mixed signal circuits. Many modern ADCs require differential signals at the inputs. Differential analog signals are also handy to drive signals over a cable. Differential op amps are useful building blocks for creating differential signals. Linear Technology ...

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Spread Spectrum Frequency Modulation Reduces Automotive LED Driver EMI

Keith Szolusha - Applications Engineering Section Leader 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 ...

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Evaluating Zero-Drift Amplifier Performance

Jeremy Wong - Design Engineer Dec 30th 2013
Analog applications are demanding better precision and drift performance due to improvements in data converter resolution and the economic drive to reduce or eliminate periodic calibration. Zero-drift amplifiers, which achieve microvolt-level accuracy and excellent low frequency noise, are the ideal choice for these high-sensitivity ...

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LT8302 42VIN Micropower No-Opto Isolated Flyback Converter with 65V/3.6A Switch - Video Product Brief

Bruce Haug - Product Marketing Engineer 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 compensation ...

Video LTspice 

 

LTspice: Stability of Op Amp Circuits

Kris Lokere - Strategic Applications Manager Nov 6th 2013
We all know that feedback circuits can oscillate. We may even know some tricks of how to fix it. But wouldn’t it be nice if our simulation tool could show us exactly what is happening, and why? This video illustrates how to use the .AC analysis to look at open loop gain and phase of operational amplifier feedback circuits ...

Blog Post Video LTspice 

 

Low Noise Rail-to-Rail Negative Regulator with Programmable Current Limit

Amit Patel 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 ...

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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) is a design ...

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76V Over-the-Top® Input Op Amp Combines Precision, Versatility and Protection

Arnold Nordeng - Design Section Leader - Signal Conditioning Mar 20th 2013
With the increased-use of electronics in automotive and industrial applications, the need for robust and highly reliable components is essential to ensure a proper functioning system with low maintenance costs. Automotive applications, for example have hostile environments where electronic components may be exposed to a variety ...

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LTM4641 TechClips - Efficiency, Output Overvoltage Protection, Overcurrent Protection and More

Afshin Odabaee - Business Manager - uModule Power Products Feb 6th 2013
The LTM4641 is a 4.5V to 38V input, 0.6V to 6V output, 10A step-down μModule® regulator with comprehensive electrical and thermal protection for loads such as processors, ASICs and high-end FPGAs. The LTM4641 μModule regulator monitors input voltage, output voltage and temperature conditions. If any user-adjustable ...

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Switching Regulator Power Loss

Robert Dobkin - Chief Technical Officer Jan 9th 2012
Efficiency is a misleading number for comparison of switching regulators. The efficiency number can be manipulated by the input and output voltage, while power loss is more tightly tied to the actual circuit. This video explains why. ...

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