SY22841AAC-Products-Silergy Corp

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SY22841AAC (SY50281AAC)

Production
Buck Regulator With CV/CC Control
Datasheet
SY22841AAC Buck Regulator With CV/CC Control Datasheet
    Part numberSY22841AAC
    Pout (max) (W)3
    HV startupNO
    Iout (max) (A)0.25
    Vout (typ)(V)Adjustable
    Breakdown voltage (V)500
    Ron (typ) (mΩ)12
    Switching frequency (min)(kHz)45
    Switching frequency (max)(kHz)45
    Operation modeQR
    No load loss (mW)<75
    FeaturesCC/CV
    PackageSOT23-5
    Operating temperature range(°C)-40 to 125
    Functional safety category
    • Integrated 500V MOSFET
    • CC/CV control eliminates Aux-winding
    • Quasi-Resonant (QR) mode to achieve low switching losses
    • Fast  Startup  (<500ms)
    • Low start up current: 15µA typical
    • Maximum frequency limit: 45kHz
    • Compact package: SOT23-5

    Evaluation Board

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    EVB_SY22841

    The SY22841 is a PWM controller with several features to enhance performance of Buck converters. It integrates a MOSFET with 500V breakdown voltage to decrease physical volume. Both current and voltage regulation are achieved by the controller. It drives the Buck converter in the quasi-resonant mode to achieve higher efficiency and better EMI performance. 

    Technical Documentation