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LT3575EFE#PBF

DC/DC Controller, 3V to 40V, 1 Output, Flyback, 1MHz, TSSOP-16

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Manufacturer:: LINEAR TECHNOLOGY LINEAR TECHNOLOGY
Manufacturer Part No:: LT3575EFE#PBF
Order Code:: 2102658
Technical Datasheet:: LT3575EFE#PBF Datasheet

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Product Overview

The LT3575EFE#PBF is a monolithic Switching Regulator specifically designed for the isolated flyback topology. No third winding or optoisolator is required for regulation. The part senses the isolated output voltage directly from the primary side flyback waveform. A 2.5A, 60V NPN power switch is integrated along with all control logic. It operates with input supply voltages from 3 to 40V and can deliver output power up to 14W with no external power switch. The LT3575 utilizes boundary mode operation to provide a small magnetic solution with improved load regulation. The output voltage is easily set with two external resistors and the transformer turns ratio. Off the shelf transformers are available for many applications.

Boundary mode operation
No transformer third winding or optoisolator required for regulation
VOUT Set with two external resistors
BIAS Pin for internal bias supply and power NPN driver
Programmable soft-start
Programmable power switch current limit
Improved primary-side winding feedback load regulation

Applications

Power Management, Industrial, Automotive, Medical

Product Information

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Supply Voltage Min:: 3V
Supply Voltage Max:: 40V
No. of Outputs:: 1 Output
Duty Cycle (%):: -
Controller IC Case Style:: TSSOP
No. of Pins:: 16Pins
Switching Frequency:: 1MHz
Topology:: Flyback
Operating Temperature Min:: -40°C
Operating Temperature Max:: 125°C
Product Range:: -
Automotive Qualification Standard:: -
MSL:: MSL 1 - Unlimited

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Technical Docs (2)

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