MP8726 4.5-21V, 6A, 500kHz Synchronous Step-down Converter QFN3
MP8726 4.5-21V, 6A, 500kHz Synchronous Step-down Converter QFN3

MP8726 4.5-21V, 6A, 500kHz Synchronous Step-down Converter QFN3

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pMPS MP8726 — Synchronous Step-down Converter, 4.5-21V input, 6 A output, QFN3./p
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    MP8726 4.5-21V, 6A, 500kHz Synchronous Step-down Converter QFN3

    The MPS MP8726 is a Synchronous Step-down Converter. It operates from a 4.5 V to 21 V input, is rated for 6 A and switches at 500 kHz. It is supplied in a QFN3 package.

    The MP8726 is a high frequency synchronous rectified step-down switch mode converter with built in internal power MOSFETs.

    Key Specifications

    Part NumberMP8726
    FunctionSynchronous Step-down Converter
    Input Voltage4.5 V to 21 V
    Current Rating6 A
    Switching Frequency500 kHz
    PackageQFN3
    Ordering CodesMP8726

    Features

    • Wide 4.5V to 21V Operating Input Range
    • 6A Peak Output Current
    • Low RDS(ON) Internal Power MOSFETs
    • Proprietary Switching Loss Reduction Technique
    • Fixed 500kHz Switching Frequency
    • Sync from 300kHz to 2MHz External Clock
    • Internal Compensation
    • OCP Protection and Thermal Shutdown
    • Output Adjustable from 0.8V
    • Available in 14-pin QFN3x4 Package

    Typical Application Circuit

    MP8726 typical application circuit
    MP8726 typical application circuit, as published in the MPS datasheet.

    Applications

    • Notebook Systems and I/O Power
    • Networking Systems
    • Digital Set Top Boxes
    • Personal Video Recorders
    • Flat Panel Television and Monitors
    • Distributed Power Systems "MPS" and "The Future of Analog IC Technology" are Registered Trademarks of Monolithic Power Systems, Inc.

    Design Notes

    • Size the inductor for the ripple current at the actual switching frequency, typically 30% of the DC load — not for the DC rating alone.
    • The hot loop from input capacitor through the switch to ground sets conducted EMI. Keep that copper area as small as the layout allows.
    • Output ripple is set by the capacitor ESR and its DC-bias derating; a 10 µF ceramic often behaves like 4 µF at the rated output voltage.
    • Route the feedback divider from the output capacitor terminals, away from the switch node.

    Common Questions

    What input voltage does the MP8726 support?
    4.5 V to 21 V. The rated output is 6 A.
    Which package and ordering codes apply to the MP8726?
    QFN3; order codes include MP8726.
    What are the defining features of the MP8726?
    Wide 4.5V to 21V Operating Input Range 6A Peak Output Current

    Shenzhen Gaorunxin Technology Co., Ltd

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