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MP3433GQ-Z 2.8-17V, 20A, 600kHz Synchronous Boost Converter QFN-16
MP3433GQ-Z 2.8-17V, 20A, 600kHz Synchronous Boost Converter QFN-16

MP3433GQ-Z 2.8-17V, 20A, 600kHz Synchronous Boost Converter QFN-16

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pMPS MP3433GQ-Z — Synchronous Boost Converter, 2.8-17V input, 20 A output, QFN-16./p
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    MP3433GQ-Z 2.8-17V, 20A, 600kHz Synchronous Boost Converter QFN-16

    The MPS MP3433GQ-Z is a Synchronous Boost Converter. It operates from a 2.8 V to 17 V input, is rated for 20 A and switches at 600 kHz. It is supplied in a QFN-16 package.

    The MP3433 is a 600kHz fixed-frequency, wide input voltage (VIN) range, highly integrated boost converter.

    Key Specifications

    Part NumberMP3433GQ-Z
    FunctionSynchronous Boost Converter
    Input Voltage2.8 V to 17 V
    Output Voltage22 V
    Current Rating20 A
    Switching Frequency600 kHz
    Peak Efficiency95%
    PackageQFN-16
    Ordering CodesMP3433GQ-Z

    Features

    • 2.8V to 17V Start-Up Voltage (VST)
    • 0.8V to 17V Operating Input Voltage (VIN)
    • Up to 22V Output Voltage (VOUT)
    • Supports 30W or 50W Load Power from a 1-Cell or 2-Cell Battery, Respectively
    • Configurable Input Current (IIN) Limit
    • 20A Switching Current Limit (IPK_LIMIT)
    • Integrated 6mΩ and 9mΩ Power MOSFETs
    • >95% Efficiency for 6.6V VIN to 16V/50W
    • >20kHz Ultrasonic Mode (USM) under Light-Load Conditions
    • 600kHz Fixed Switching Frequency (fSW)

    Typical Application Circuit

    MP3433GQ-Z typical application circuit
    MP3433GQ-Z typical application circuit, as published in the MPS datasheet.

    Applications

    • Notebooks
    • Bluetooth Speakers
    • Portable Point-of-Sale (POS) Systems

    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 MP3433GQ-Z support?
    2.8 V to 17 V. The rated output is 20 A.
    Which package and ordering codes apply to the MP3433GQ-Z?
    QFN-16; order codes include MP3433GQ-Z.
    What are the defining features of the MP3433GQ-Z?
    2.8V to 17V Start-Up Voltage (VST) 0.8V to 17V Operating Input Voltage (VIN)

    Shenzhen Gaorunxin Technology Co., Ltd

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    Shenzhen Gaorunxin Technology Co., Ltd

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