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SY21240DRAC

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High Efficiency Fast Response, 9A, 28V Input Synchronous Step Down Regulator with VDDQ LDO
Datasheet
SY21240DRAC High Efficiency Fast Response, 9A, 28V Input Synchronous Step Down Regulator with VDDQ LDO Datasheet
    Part NumberSY21240DRAC
    Vin_min (V)4
    Vin_max (V)24
    Vo_min (V)0.6
    Io_max (A)9
    Vref Accuracy±1%
    Fsw (MHz)0.6
    Iq (uA)65
    PackageQFN3x3-20
    Protection ModeOVP,Latch-off SCP
    Features / Special FunctionPower Good Indicator,Support VDDQ LDO High-Z in S3,Auto-Discharge

     

    • Low RDS(ON) for Internal Switches of the Regulator (Top/Bottom): 27/9 mΩ
    • 4~24V Input Voltage Range
    • Compatible for LPDDR4X Application
    • Instant PWM Architecture to Achieve Fast Transient Responses
    • Internal 450μs Soft-start Limits the Inrush Current
    • 600kHz Pseudo-constant Switching Frequency
    • PFM/USM Selectable Light Load Operation Mode
    • ±1.0% 0.6V VDD2 Reference
    • 9A Continuous/12A Peak Output Current Capability of the VDD2 Regulator
    • Fixed 0.61V VDDQ Reference
    • ±1A Source/Sink Current Capability of the VDDQ LDO
    • VDD2 and VDDQ Power Good Indicator
    • Support VDDQ LDO High-Z in S3
    • Output Discharge Function for Both VDD2 and VDDQ in S4/S5
    • Guarantee VDD2 200mV Higher Than VDDQ at Any Operation Condition
    • Cycle-by-cycle Valley and Peak Current Limit Protection for VDD2
    • Latch-off Mode Output Under Voltage Protection for VDD2
    • Latch-off Mode Output Over Voltage Protection for VDD2
    • Latch-off Mode Over Temperature Protection for VDD2
    • Input UVLO and Bias UVLO
    • RoHS Compliant and Halogen Free
    • Compact package: QFN3×3-20

     

    Evaluation Board

    • 21240D-1

      Photo of evaluation board

    • 21240D-2

      Photo of evaluation board

    • 21240D-3

      Photo of evaluation board

    • 21240D-4

      Photo of evaluation board

    • 21240D-5

      Photo of evaluation board

    EVB_SY21240DRAC

    The EVB_SY21240DRAC is intended for evaluating 600kHz, 9A continuous output current, 24V input synchronous Buck regulator with ±1A VDDQ LDO.

    Technical Documentation

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