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Datasheet Linear Technology LT3575EFE#TRPBF

ManufacturerLinear Technology
Part NumberLT3575EFE#TRPBF

Isolated Flyback Converter without an Opto-Coupler


  • Download » Datasheet, PDF, 251 Kb, Revision: F
    LT3575 - Isolated Flyback Converter without an Opto-Coupler
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    Isolated Flyback Converter
    without an Opto-Coupler
    FEATURES DESCRIPTION n The LT®3575 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 into a
    16-lead TSSOP package. n 3V to 40V Input Voltage Range
    2.5A, 60V Integrated NPN Power Switch
    Boundary Mode Operation
    No Transformer Third Winding or
    Optoisolator 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
    Thermally Enhanced 16-Lead TSSOP The LT3575 operates with input supply voltages from
    3V to 40V, and can deliver output power up to 14W with
    no external power switch.The LT3575 utilizes boundary ...



Package CodeFE


Demo BoardsDC1643A
Design ToolsLTspice File
Export Controlno yes/no
FeaturesBoundary Mode Operation, No Opto Isolator
Frequency1000 kHz
Integrated Inductorno yes/no
Isupply4.5 mA
Monolithicyes yes/no
Number of Outputs1
Operating Temperature Range0 to 85 °C
Polyphaseno yes/no
Switch Current3.5 A
Synchronousno yes/no
Vin Max40 V
Vin Min3 V
Vout Max60 V
Vout Maximum60V
Vswitch Max60 V

Eco Plan


Moldel Line

Series: LT3575 (4)

Manufacturer's Classification

  • Power Management > Switching Regulator > Flyback, Forward and Isolated Controllers

Other Names:


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