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MP2499A 5-36V, 3A Step-Down Converter QFN-13
MP2499A 5-36V, 3A Step-Down Converter QFN-13

MP2499A 5-36V, 3A Step-Down Converter QFN-13

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pMPS MP2499A — Step-Down Converter, 5-36V input, 3 A output, QFN-13./p
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    MP2499A 5-36V, 3A Step-Down Converter QFN-13

    The MPS MP2499A is a Step-Down Converter. It operates from a 5 V to 36 V input, is rated for 3 A and switches at 270 kHz. It is supplied in a QFN-13 package.

    The MP2499A is a synchronous, rectified, step- down, switch-mode converter with built-in power MOSFETs.

    Key Specifications

    Part NumberMP2499A
    FunctionStep-Down Converter
    Input Voltage5 V to 36 V
    Current Rating3 A
    Switching Frequency270 kHz
    PackageQFN-13
    Ordering CodesMP2499A

    Features

    • Wide 5V to 36V Continuous Operating Input Range
    • 85mΩ/55mΩ Low RDS(ON) Internal Power MOSFETs
    • High-Efficiency Synchronous Mode Operation
    • Default 270kHz Switching Frequency
    • Synchronizes to a 200kHz to 2.4MHz External Clock
    • Internal Soft Start
    • Output Line Drop Compensation
    • Accurate Continuous Output Current Limit with External Resistor
    • Over-Current Protection (OCP) and Hiccup
    • Thermal Shutdown

    Typical Application Circuit

    MP2499A typical application circuit
    MP2499A typical application circuit, as published in the MPS datasheet.

    Applications

    • USB-Dedicated Charging Ports (DCP)
    • Automotive Cigarette Lighter Adapters
    • USB Chargers

    Design Notes

    • The current-limit threshold must stay inside the SOA of the pass device at the applied voltage, including startup inrush.
    • Hot-swap inrush control is set by the slew rate on the gate or the dV/dt capacitor — too fast trips the upstream supply.
    • Reverse-current blocking behaviour differs between ideal-diode and load-switch topologies; pick the one that matches the fault you are protecting against.
    • Route the fault flag to a pin the firmware actually polls; a latch-off protection with no report looks like a dead board in the field.

    Common Questions

    What input voltage does the MP2499A support?
    5 V to 36 V. The rated output is 3 A.
    Which package and ordering codes apply to the MP2499A?
    QFN-13; order codes include MP2499A.
    What are the defining features of the MP2499A?
    Wide 5V to 36V Continuous Operating Input Range 85mΩ/55mΩ Low RDS(ON) Internal Power MOSFETs

    Shenzhen Gaorunxin Technology Co., Ltd

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    Shenzhen Gaorunxin Technology Co., Ltd

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