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LT3573IMSE#PBF - 

DC-DC Switching Regulator Buck, Adjustable, 3V-40Vin, 1.23V/1.25A out, 1 MHz, MSOP-16

LINEAR TECHNOLOGY LT3573IMSE#PBF

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Manufacturer Part No:
LT3573IMSE#PBF
Order Code:
2294936
Technical Datasheet:
(EN)
See all Technical Docs

Product Overview

The LT3573IMSE#PBF is a monolithic Switching Regulator specifically designed for the isolated flyback topology. No third winding or opto-isolator is required for regulation. The part senses the isolated output voltage directly from the primary-side flyback waveform. A 1.25A/60V NPN power switch is integrated along with all control logic. The LT3573 operates with input supply voltages from 3 to 40V and can deliver output power up to 7W with no external power devices. The LT3573 utilizes boundary mode operation to provide a small magnetic solution with improved load regulation.
  • Boundary mode operation
  • No transformer third winding or opto-isolator required for regulation
  • Improved primary-side winding feedback load 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

Applications

Industrial, Automotive, Medical, Power Management

Product Information

:
Flyback
:
3V
:
40V
:
1Outputs
:
MSOP
:
16Pins
:
1.25A
:
1.23V
:
-
:
1MHz
:
125°C
:
Cut Tape
:
-
:
-
:
MSL 1 - Unlimited
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