MP1583 4.75-23V, 3A, 385KHz Step-Down Converter SOIC8E
MP1583 4.75-23V, 3A, 385KHz Step-Down Converter SOIC8E

MP1583 4.75-23V, 3A, 385KHz Step-Down Converter SOIC8E

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pMPS MP1583 — Step-Down Converter, 4.75-23V input, 3 A output, SOIC8E./p
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    MP1583 4.75-23V, 3A, 385KHz Step-Down Converter SOIC8E

    The MPS MP1583 is a Step-Down Converter. It operates from a 4.75 V to 23 V input, is rated for 3 A and switches at 385 KHz. It is supplied in a SOIC8E package.

    The MP1583 is a step-down regulator with a built-in internal Power MOSFET.

    Key Specifications

    Part NumberMP1583
    FunctionStep-Down Converter
    Input Voltage4.75 V to 23 V
    Current Rating3 A
    Switching Frequency385 KHz
    Peak Efficiency95%
    PackageSOIC8E
    Ordering CodesMP1583

    Features

    • 3A Output Current
    • Programmable Soft-Start
    • 100mΩ Internal Power MOSFET Switch
    • Stable with Low ESR Output Ceramic Capacitors
    • Up to 95% Efficiency
    • 20μA Shutdown Mode
    • Fixed 385KHz Frequency
    • Thermal Shutdown
    • Cycle-by-Cycle Over Current Protection
    • Wide 4.75V to 23V Operating Input Range

    Typical Application Circuit

    MP1583 typical application circuit
    MP1583 typical application circuit, as published in the MPS datasheet.

    Applications

    • Distributed Power Systems
    • Battery Chargers
    • Pre-Regulator for Linear Regulators "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 MP1583 support?
    4.75 V to 23 V. The rated output is 3 A.
    Which package and ordering codes apply to the MP1583?
    SOIC8E; order codes include MP1583.
    What are the defining features of the MP1583?
    3A Output Current Programmable Soft-Start

    Shenzhen Gaorunxin Technology Co., Ltd

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