MPQ4568 4.5-45V Synchronous Step-Down Converter QFN10
MPQ4568 4.5-45V Synchronous Step-Down Converter QFN10

MPQ4568 4.5-45V Synchronous Step-Down Converter QFN10

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pMPS MPQ4568 — synchronous step-down converter, 4.5-45V input, QFN10./p
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    MPQ4568 4.5-45V Synchronous Step-Down Converter QFN10

    MPS MPQ4568 is a synchronous step-down converter that accepts 4.5 V to 45 V input, supplied in a QFN10 package.

    Key Specifications

    Part NumberMPQ4568
    Input Voltage4.5 V to 45 V
    Quiescent Current20 uA
    TopologySynchronous Step-Down Converter
    PackageQFN10
    Ordering CodesMPQ4568

    Features

    • 20μA Quiescent Current
    • Wide 4.5V to 45V Operating Range with 50V Input OVP
    • 60V Integrated MOSFETs with 0.7Ω and 2.25Ω Ron
    • Programmable Switching Frequency
    • Stable with Ceramic Output Capacitors
    • Low Output Ripple
    • Programmable Soft-Start
    • Adjustable Input UVLO Hysteresis
    • Precision Peak Current Limit without Current-Sensing Resistor
    • Programmable Peak Current Limit

    Applications

    • 4mA to 20mA Current Loops
    • Automotive Systems
    • Industrial Power Systems
    • Distributed Power Systems

    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.
    • AEC-Q100 qualification suits this part to automotive rails.
    • Package QFN10 — check the land pattern in the datasheet before layout.

    Common Questions

    Which package is the MPQ4568 available in?
    QFN10.

    Shenzhen Gaorunxin Technology Co., Ltd

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