MP28266 3A, 500kHz Synchronous Step-Down Converter QFN14
MP28266 3A, 500kHz Synchronous Step-Down Converter QFN14

MP28266 3A, 500kHz Synchronous Step-Down Converter QFN14

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pMPS MP28266 — synchronous step-down converter, 3A output, 500 kHz, QFN14./p
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    MP28266 3A, 500kHz Synchronous Step-Down Converter QFN14

    MPS MP28266 is a synchronous step-down converter that delivers 3 A, switches at 500 kHz, supplied in a QFN14 package.

    Key Specifications

    Part NumberMP28266
    Output Current3 A
    Switching Frequency500 kHz
    TopologySynchronous Step-Down Converter
    PackageQFN14
    Ordering CodesMP28266

    Features

    • Wide 6V-to-21V Operating Input Range
    • 0.6V Internal Reference with 2% Accuracy
    • 3A Output Current
    • Low-Rds(ON) Internal Power MOSFETs
    • Fixed 500kHz Switching Frequency
    • Frequency SYNC from a 300kHz-to-2MHz External Clock
    • External Soft-Start
    • AAM Power-Save Mode
    • OCP and Thermal Shutdown
    • Available in a 3mm×4mm QFN14 Package.

    Applications

    • DSL Modems
    • Cable Modems

    Design Notes

    • The step-down topology needs an inductor and output capacitor sized for the ripple at the switching frequency, not just the DC load.
    • Keep the input loop short — high di/dt at the switch node sets conducted EMI.
    • Power switches are integrated, so the thermal path is the PCB copper under the pad.
    • Package QFN14 — check the land pattern in the datasheet before layout.

    Common Questions

    What switching frequency does the MP28266 run at?
    500 kHz.
    Which package is the MP28266 available in?
    QFN14.

    Shenzhen Gaorunxin Technology Co., Ltd

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