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LINEAR TECHNOLOGY  LT3574IMS#PBF  DC-DC Switching Flyback Regulator, Adjustable, 3V-40V in, 650mA out, 1MHz, MSOP-16

LINEAR TECHNOLOGY LT3574IMS#PBF
Manufacturer Part No:
LT3574IMS#PBF
Order Code:
1898625
Technical Datasheet:
See all Technical Docs

Image is for illustrative purposes only. Please refer to product description.

Product Overview

The LT3574IMS#PBF is an Isolated Flyback Converter without an opto-coupler 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 0.65A, 60V NPN power switch is integrated along with all control logic. The LT3574 operates with input supply voltages from 3 to 40V and can deliver output power up to 3W with no external power devices. The LT3574 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.
  • 0.65A, 60V Integrated NPN power switch
  • 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

Product Information

Topology:
Flyback
Input Voltage Min:
3V
Input Voltage Max:
40V
No. of Outputs:
-
DC / DC Converter IC Case:
MSOP
No. of Pins:
16Pins
Output Current:
650mA
Output Voltage Min:
1.23V
Output Voltage Max:
-
Switching Frequency:
1MHz
Operating Temperature Max:
125°C
Packaging:
Cut Tape
Product Range:
-
Automotive Qualification Standard:
-
MSL:
MSL 1 - Unlimited
SVHC:
No SVHC (17-Dec-2015)

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Applications

  • Industrial
  • Automotive
  • Medical

Legislation and Environmental

Country of Origin:
United States

Country in which last significant manufacturing process was carried out

RoHS Compliant:
Yes
Tariff No:
85423990
Weight (kg):
.0002