MP5402M 7-36V, 5A Frequency Selectable Step-Down Converter QFN-26
MP5402M 7-36V, 5A Frequency Selectable Step-Down Converter QFN-26

MP5402M 7-36V, 5A Frequency Selectable Step-Down Converter QFN-26

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pMPS MP5402M — Frequency Selectable Step-Down Converter, 7-36V input, 5 A output, QFN-26./p
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    MP5402M 7-36V, 5A Frequency Selectable Step-Down Converter QFN-26

    The MPS MP5402M is a Frequency Selectable Step-Down Converter. It operates from a 7 V to 36 V input, is rated for 5 A and switches at 150 kHz. It is supplied in a QFN-26 package.

    The MP5402M integrates a monolithic, step- down, switch-mode converter with two USB current-limit switches and a charging port identification circuit.

    Key Specifications

    Part NumberMP5402M
    FunctionFrequency Selectable Step-Down Converter
    Input Voltage7 V to 36 V
    Output Voltage5 V
    Current Rating5 A
    Switching Frequency150 kHz
    PackageQFN-26
    Ordering CodesMP5402M

    Features

    • EMI Reduction Technique
    • Wide 7V to 36V Operating Input Voltage Range
    • Fixed 5V Output Voltage with Line Drop Compensation
    • Accurate USB1/USB2 Output Current Limit
    • 40mΩ/32mΩ Low-RDS(ON) Internal Buck Power MOSFETs
    • 24mΩ/24mΩ Low-RDS(ON) Internal USB1/USB2 Power MOSFETs
    • 350kHz/250kHz/150kHz Frequency Selectable
    • Programmable Line Drop Compensation
    • Output Over-Voltage Protection
    • Hiccup Current Limit

    Typical Application Circuit

    MP5402M typical application circuit
    MP5402M typical application circuit, as published in the MPS datasheet.

    Applications

    • USB Dedicated Charging Ports (DCP)

    Design Notes

    • Rail sequencing order and delay are part of the SoC power-up contract; a wrong order latches the processor even though every rail is in spec.
    • In multiphase designs, current balance depends on the loop matching between phases, so keep the layout symmetric.
    • Digital interfaces (PMBus, I²C) need pull-ups to the correct rail and a defined state during power-up.
    • Thermal design is a system problem here: the PMIC sits next to the load it feeds, so budget the shared copper, not the package alone.

    Common Questions

    What input voltage does the MP5402M support?
    7 V to 36 V. The rated output is 5 A.
    Which package and ordering codes apply to the MP5402M?
    QFN-26; order codes include MP5402M.
    What are the defining features of the MP5402M?
    EMI Reduction Technique Wide 7V to 36V Operating Input Voltage Range

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