LINEAR Manuals

This document introduces the latest features of LTspice IV, including quick simulation of switch-mode power supplies, calculation of efficiency, observation of power supply startup behavior and transient response.

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This paper presents a µModule solution for low voltage, high current applications using the LTM4627 µModule regulator. The solution offers high efficiency, high power density and a small size.

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This article describes a method of solving isolated control problems by shifting the control frequency up with the TimerBlox PWM Generator.

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The LTC4425 is a dedicated IC for charging supercapacitors. It incorporates an ideal diode, which provides efficient supercapacitor charging and offers high-precision undervoltage lockout (UVLO) and short-circuit protection.

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The document describes how to add third-party models to LTspice IV circuit simulations and provides a list of new models.

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The LTC®3880/-1 is a dual output synchronous step-down DC/DC controller that combines a comprehensive power management feature set with a digital controller and analog control loop, providing accurate configuration and monitoring of key power system operating parameters. The device supports VID output voltage control with ±0.5% VOUT accuracy.

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This article introduces the LTM®4613 8A µModule® step-down regulator, which is available in a 15mm x 15mm ultra-compact package and provides up to 96W of output power. The regulator meets EN55022 Class B standards by combining high performance with ultra-low EMI.

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This document introduces how to build a system that measures relative humidity using LTC2991, which can achieve instrument-grade accuracy

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This article describes the LTC6946, an integrated VCO integer-N synthesizer that delivers top notch PLL performance in a 4mm×5mm package. The device combines an industry-leading ultralow phase noise and spurious integer-N synthesizer with a low phase noise and broadband VCO.

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This article presents the design analysis of the LTM®9004 direct conversion receiver and the features and characteristics of the small-sized receiver built using system-in-package (SiP) technology.

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This article introduces the working principle and characteristics of LTC4354 negative voltage diode-OR controller. This controller can accept inputs up to 100V and has overcurrent protection function. In order to adapt to inputs higher than 100V, a variety of methods can be used to improve the controller, such as increasing series resistance, using Zener diodes for clamping, and using high-voltage MOSFETs for clamping.

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This paper introduces the LT8582, a dual output monolithic supply with integrated 3A power switches and operation to 2.5MHz in a 7mm × 4mm DFN package.

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This document introduces the LTC3838 and LTC3839 controllers, which are designed to meet the needs of the most demanding low output voltage, high load current applications. Both controllers feature superior differential regulation accuracy and fast transient response. The controlled on-time architecture yields minimum on-times as low as 30ns and is capable of switching frequencies from 200kHz to 2MHz with synchronization to an external clock. In addition to architectural advantages, the proprietary detect transient release (DTR) feature improves the transient response.

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The LTC3866 is a reliable current mode switching power supply controller with <0.5mΩ current sensing resistance, enabling high efficiency. It is suitable for high current applications and features a wide input range, remote output voltage sensing, programmable temperature-compensated current limit, short-circuit soft recovery, and more.

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Digital power management is emerging as a key requirement in complex high reliability applications. It allows complex multirail systems to be efficiently debugged via PC-based software tools, avoiding time-consuming hardware changes. Digital power management provides real-time telemetry data and fault logs, enabling fast diagnosis of power system failures and implementation of corrective action. DC/DC converters with digital management functionality enable the development of green power systems that optimize energy usage while meeting system performance targets. This article shows how performance, reliability, and energy efficiency are improved in network switches and routers, base stations and servers, as well as industrial and medical equipment through the use of the LTC2974 quad-channel digital power management IC.

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This document is in English, and introduces new products from Linear Technology

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This document introduces the LTC3226 single-chip supercapacitor power supply backup solution, including working principles, typical application circuits and other contents.

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The LTM8047 and LTM8048 µModule converters take the hassle out of designing isolated power supplies

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The LTC1517-5 is a micropower charge pump DC/DC converter that produces a regulated 5V output. It has extremely low operating current and low external parts count, making it ideal for small, light load battery-powered applications.

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