SY22845FAC-Products-Silergy Corp

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SY22845FAC (SY50583FAC)

Production
Buck Regulator With CV/CC Control
Datasheet
SY22845FAC Buck Regulator With CV/CC Control Datasheet
    Part numberSY22845FAC
    Pout (max) (W)4.2
    HV startupNO
    Iout (max) (A)0.35
    Vout (typ)(V)Adjustable
    Breakdown voltage (V)700
    Ron (typ) (mΩ)7
    Switching frequency (min)(kHz)45
    Switching frequency (max)(kHz)45
    Operation modeQR
    No load loss (mW)<75
    FeaturesCC/CV
    PackageSO8
    Operating temperature range(°C)-40 to 125
    Functional safety category
    • Integrated 700V MOSFET
    • CC/CV Control Eliminates Aux-winding
    • Quasi-Resonant (QR) mode to Achieve Low Switching Losses
    • Low Start Up Current: 15µA Typical
    • Maximum Frequency Limit: 45kHz
    • Compact Package: SO8

    Evaluation Board

    • EVB22845-1

      Photo of evaluation board

    • EVB22845-2

      Photo of evaluation board

    EVB_SY22845

    The SY22845 is a PWM controller with several features to enhance performance of Buck converters. It integrates a MOSFET with 700V 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

    TitleDate
    Automotive_Solutions_Q1_20262026-02-09
    Silergy_Catalog_Q1_20262026-02-09
    SO82022-05-20