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Datasheet Linear Technology LT3574IMS#PBF

Manufacturer:Linear Technology
Series:LT3574
Part Number:LT3574IMS#PBF

Isolated Flyback Converter Without an Opto-Coupler

Datasheets

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    LT3574 - Isolated Flyback Converter Without an Opto-Coupler
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    LT3574
    Isolated Flyback Converter
    Without an Opto-Coupler
    Features n n n n n n Description 3V to 40V Input Voltage Range
    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
    16-Lead MSOP Package The LTВ®3574 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 0.65A, 60V NPN power
    switch is integrated along with all control logic into a
    16‑lead MSOP package.
    The LT3574 operates with input supply voltages from
    3V to 40V, and can deliver output power up to 3W with ...

Packaging

PackageMS-16
Package CodeMS

Parametrics

Demo BoardsDC1636A
Design ToolsLTspice File
Export Controlno yes/no
FeaturesBoundary Mode Operation, No Opto Isolator
Frequency1000 kHz
Integrated Inductorno yes/no
Isupply3.5 mA
Monolithicyes yes/no
Number of Outputs1
Operating Temperature Range-40 to 85 °C
Polyphaseno yes/no
Switch Current0.9 A
Synchronousno yes/no
TopologyFlyback
Vin Max40 V
Vin Min3 V

Eco Plan

RoHSCompliant

Manufacturer's Classification

  • Switching Regulator

Other Names: LT3574IMSPBF, LT3574IMS PBF

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