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SY21081B1ABC

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High Efficiency, Fast Response, 2.0A, 18V Input Synchronous Step Down Regulator
Datasheet
SY21081B1ABC High Efficiency, Fast Response, 2.0A, 18V Input Synchronous Step Down Regulator Datasheet
    Part NumberSY21081B1ABC
    Vin_min (V)4.5
    Vin_max (V)18
    Vo_min (V)0.6
    Io_max (A)2
    Vref Accuracy±1.5%
    Fsw (MHz)1.4
    Iq (uA)
    PackageSOT23-6
    Protection ModeHic-cup SCP
    Features / Special Function

     

    • Low RDS(ON) for Internal Switches (Top/Bottom): 130mΩ/105mΩ
    • 4.5~18V Input Voltage Range
    • 2A Output Current Capability
    • 1.4MHz Switching Frequency Minimize the External Components
    • Stable with 10µF COUT and 1.0µH Inductor
    • Instant PWM Architecture to Achieve Fast Transient Responses
    • Internal Soft-start Limits the Inrush Current
    • Forced PWM Operation
    • Cycle-by-cycle Peak/Valley Current Limitation
    • Hic-cup Mode Output Short Circuit Protection
    • Thermal Shutdown with Auto Recovery
    • Compact Package SOT23-6

     

    Evaluation Board

    • 21081B1-1

      Photo of evaluation board

    • 21081B1-2

      Photo of evaluation board

    • 21081B1-3

      Photo of evaluation board

    EVB_SY21081B1ABC

    The EVB_SY21081B1ABC is intended for evaluating 2A, 18V input, 1.4MHz synchronous Buck regulator.

    Technical Documentation

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