LT1103

Obsolete

Offline Switching Regulator

Data Sheet (Rev. F) Product Selection Table

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Part Details

Obsolete: Datasheet For Information Purposes Only. Contact Analog Devices for Potential Replacement

±1% Line and Load Regulation with No Optocoupler
Switch Frequency Up to 200kHz
Internal 2A Switch and Current Sense (LT1103)
Internal 1A Totem-Pole Driver (LT1105)
Start-Up Mode Draws Only 200µA
Fully Protected Against Overloads

Overvoltage Lockout of Main Supply
Protected Against Underdrive or Overdrive to FET
Operates in Continuous or Discontinuous Mode
Ideal for Flyback and Forward Topologies
Isolated Flyback Mode Has Fully Floating Outputs

Documentation

Data Sheet 1

LT1103/LT1105: Offline Switching Regulator Data Sheet (Rev.F) 03/12/2008

Reliability Data 1

R177 Reliability Data 03/23/2018

This is the most up-to-date revision of the Data Sheet.

Software Resources

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Hardware Ecosystem

Parts	Product Life Cycle	Description
LT1725	PRODUCTION	General Purpose Isolated Flyback Controller

Tools & Simulations

LTspice

Models for the following parts are available in LTspice:

LT1103

LTspice® is a powerful, fast and free simulation software, schematic capture and waveform viewer with enhancements and models for improving the simulation of analog circuits.

Evaluation Kits

LT1103CT7 | Offline Power Supply Evaluation Box

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Product Details

Obsolete Item - This Page For Informational Purposes Only.

Resources

DC012A - Design File
9/24/2009

Latest Discussions

2 Years Ago