MP28115 2.7-6V, 4A, 1.5MHz Synchronous Step-Down Converter QFN10
MP28115 2.7-6V, 4A, 1.5MHz Synchronous Step-Down Converter QFN10

MP28115 2.7-6V, 4A, 1.5MHz Synchronous Step-Down Converter QFN10

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pMPS MP28115 — Synchronous Step-Down Converter, 2.7-6V input, 4 A output, QFN10./p
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    MP28115 2.7-6V, 4A, 1.5MHz Synchronous Step-Down Converter QFN10

    The MPS MP28115 is a Synchronous Step-Down Converter. It operates from a 2.7 V to 6 V input, is rated for 4 A and switches at 1.5 MHz. It is supplied in a QFN10 package.

    The MP28115 is an internally compensated 1.5MHz fixed frequency PWM synchronous step-down regulator.

    Key Specifications

    Part NumberMP28115
    FunctionSynchronous Step-Down Converter
    Input Voltage2.7 V to 6 V
    Current Rating4 A
    Switching Frequency1.5 MHz
    InterfacePWM
    Peak Efficiency95%
    PackageQFN10
    Ordering CodesMP28115

    Features

    • 4A Output Current
    • Input Operation Range: 2.7V to 6V
    • 1.5% Output Accuracy
    • 60mΩ Internal Power MOSFET Switches
    • All Ceramic Capacitor Design
    • Up to 95% Efficiency
    • 1.5MHz Fixed Switching Frequency
    • Internal Soft-Start
    • Frequency Synchronization Input
    • Power Good Output

    Typical Application Circuit

    MP28115 typical application circuit
    MP28115 typical application circuit, as published in the MPS datasheet.

    Applications

    • µP/ASIC/DSP/FPGA Core and I/O Supplies
    • Printers and LCD TVs
    • Network and Telecom Equipment
    • Point of Load Regulators "MPS" and "The Future of Analog IC Technology" are 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 MP28115 support?
    2.7 V to 6 V. The rated output is 4 A.
    Which package and ordering codes apply to the MP28115?
    QFN10; order codes include MP28115.
    What are the defining features of the MP28115?
    4A Output Current Input Operation Range: 2.7V to 6V

    Shenzhen Gaorunxin Technology Co., Ltd

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