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LT1103 - Offline Switching Regulator

Download the LT1103 datasheet PDF. This datasheet also covers the LT1 variant, as both devices belong to the same offline switching regulator family and are provided as variant models within a single manufacturer datasheet.

General Description

The LT®1103 Offline Switching Regulator is designed for high input voltage applications using an external FET switch whose source is driven by the open collector output of the LT1103.

The LT1103 is optimized for 15W to 100W applications.

Key Features

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📥 Download Datasheet

Note: The manufacturer provides a single datasheet file (LT1-103.pdf) that lists specifications for multiple related part numbers.

Other Datasheets by Linear Technology (now Analog Devices)

Part Number Description
LT1100 Precision/ Chopper-Stabilized Instrumentation Amplifier
LT1102 High Speed/ Precision/ JFET Input Instrumentation Amplifier(Fixed Gain=10 or 100)
LT1105 Offline Switching Regulator
LT1106 Micropower Step-Up DC/DC Converter for PCMCIA Card Flash Memory
LT1107 Micropower DC/DC Converter Adjustable and Fixed 5V/ 12V
LT1108 Micropower DC/DC Converter
LT1108-12 Micropower DC/DC Converter
LT1109 Micropower Low Cost DC/DC Converter Adjustable and Fixed 5V/ 12V
LT1109A Micropower DC/DC Converter Flash Memory VPP Generator Adjustable and Fixed 5V/ 12V
LT111 Voltage Comparator

Full PDF Text Transcription (Reference)

The following content is an automatically extracted verbatim text from the original manufacturer datasheet and is provided for reference purposes only.

View original datasheet text
LT1103/LT1105 Offline Switching Regulator FEATURES s s s s s s s s s s s DESCRIPTION The LT®1103 Offline Switching Regulator is designed for high input voltage applications using an external FET switch whose source is driven by the open collector output of the LT1103. The LT1103 is optimized for 15W to 100W applications. For higher power applications or additional switch current flexibility, the LT1105 is available and its totem pole output drives the gate of an external FET. Unique design of the LT1103/LT1105 eliminates the need for an optocoupler while still providing ±1% load and line regulation in a magnetic flux-sensed converter.