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SY21238ABC

Production
Low Noise High Efficiency 850kHz, 2A Step Up Regulator with Accurate Input Current Limit
Datasheet
SY21238ABC Low Noise High Efficiency 850kHz, 2A Step Up Regulator with Accurate Input Current Limit Datasheet
    Part NumberSY21238ABC
    Vin_min (V)3.5
    Vin_max (V)30
    Limit Current (A)2
    Fsw (MHz)0.85
    Vo_max (V)30
    Vref Accuracy±2%
    Rdson1200
    Rdson2
    Features / Special FunctionAccurate input current limit with foldback
    PackageSOT23-6
    • Wide 3.5V to 30V Input Range
    • 30V Maximum Output Voltage
    • 150 µA Iq (Typ.)
    • Low 200mΩ RDS(ON) for Internal Switch
    • 850kHz Switching Frequency 
    • Minimum On-Time: 100ns Typical
    • Minimum Off-Time: 100ns Typical 
    • Optional Input Overvoltage Protection 
    • RoHS-Compliant and Halogen-Free
    • Compact SOT23-6 Package

     

    The SY21238 high efficiency step-up regulator operates using current mode control over a wide input voltage range from 3.5V to 30V. The high efficiency is achieved with a low RDS(ON) internal switch, and EMI performance is improved by using spread spectrum modulation of the internal clock.

    The SY21238 also features optional input overvoltage protection. The SY21238 is available in a compact SOT23-6 package.

    Evaluation Board

    • SY21238ABC_1-a

      Photo of evaluation board

    • SY21238ABC_1-b

      Photo of evaluation board

    • SY21238ABC_1-c

      Photo of evaluation board

    EVB_SY21238ABC_1

    The EVB_SY21238ABC_1 is intended for evaluating a current mode control DC to DC regulator SY21238 which with accurate input average current limit.

    Technical Documentation

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