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SY21401DBC

Production

The SY21401 is a current mode DC/DC controller targeted for Boost, SEPIC, Flyback and Forward applications. The SY21401 has an accurate DC input current limit. External compensation provides flexible adjustment of control loops for different applications. The internal low side driver is capable of sourcing 1.5A and sinking 3A current.

Datasheet
SY21401DBC The SY21401 is a current mode DC/DC controller targeted for Boost, SEPIC, Flyback and Forward applications. The SY21401 has an accurate DC input current limit. External compensation provides flexible adjustment of control loops for different applications. The internal low side driver is capable of sourcing 1.5A and sinking 3A current. Datasheet
    Part NumberSY21401DBC
    Vin_min (V)3
    Vin_max (V)25
    Io_max (A)
    Channels
    Vref (V)1
    Vref Accuracy
    Fsw (MHz)0.5
    Iq (uA)
    Temp Range
    Topology
    Soft Start
    Features / Special FunctionCurrent mode DC/DC controller targeted for Boost, SEPIC, Flyback and Forward applications with DC Input Current Limit
    PackageDFN3x3-10

     

    • Input Voltage Range 3V to 25V
    • 500kHz Fixed Switching Frequency
    • An Accurate DC Input Current Limit
    • External Compensation
    • Internal Soft-start Limits the Inrush Current
    • Integrated Low Side Driver:1.5ASourcing and3ASinking
    • RoHS Compliant and Halogen Free
    • Compact Package: DFN3×3-10

     

    The SY21401 is a current mode DC/DC controller targeted for Boost, Sepic, Flyback and Forward applications. The SY21401 has an accurate DC input current limit. External compensation provides flexible adjustment of control loops for different applications. The internal low side driver is capable of sourcing 1.5A and sinking 3A current.

    Evaluation Board

    • 21401-11

      Photo of evaluation board

    • 21401-12

      Photo of evaluation board

    • 21401-13

      Photo of evaluation board

    EVB_SY21401DBC_1

    The EVB_SY21401DBC_1 is intended for evaluating 6~18V input, 4A input current limit, 12V output SEPIC applications.

    • 21401-21

      Photo of evaluation board

    • 21401-22

      Photo of evaluation board

    • 21401-23

      Photo of evaluation board

    EVB_SY21401DBC_2

    The EVB_SY21401DBC_2 is intended for evaluating 6~8.4V input, 2A output current, 12V output Boost applications.

    Technical Documentation