GRX Technology Co, Ltd
MPQ4583GQVE-AEC1-Z 4.5-90V, 3.5A, 400kHz Synchronous Step-Down DC/DC Converter QFN-19
MPQ4583GQVE-AEC1-Z 4.5-90V, 3.5A, 400kHz Synchronous Step-Down DC/DC Converter QFN-19

MPQ4583GQVE-AEC1-Z 4.5-90V, 3.5A, 400kHz Synchronous Step-Down DC/DC Converter QFN-19

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pMPS MPQ4583GQVE-AEC1-Z — Synchronous Step-Down DC/DC Converter, 4.5-90V input, 3.5 A output, QFN-19, AEC-Q100./p
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    MPQ4583GQVE-AEC1-Z 4.5-90V, 3.5A, 400kHz Synchronous Step-Down DC/DC Converter QFN-19

    The MPS MPQ4583GQVE-AEC1-Z is a Synchronous Step-Down DC/DC Converter. It operates from a 4.5 V to 90 V input, is rated for 3.5 A and switches at 400 kHz. It is supplied in a QFN-19 package. The part is AEC-Q100 qualified.

    The MPQ4583 is a 9μA quiescent current (IQ), synchronous step-down converter with integrated high-side and low-side MOSFETs (HS-FET and LS-FET, respectively).

    Key Specifications

    Part NumberMPQ4583GQVE-AEC1-Z
    FunctionSynchronous Step-Down DC/DC Converter
    Input Voltage4.5 V to 90 V
    Output Voltage0.8 V to 35 V
    Current Rating3.5 A
    Switching Frequency400 kHz
    Quiescent Current9 µA
    PackageQFN-19
    QualificationAEC-Q100
    Ordering CodesMPQ4583GQVE-AEC1-Z

    Features

    • 4.5V to 90V Input Voltage (VIN) Range
    • 9μA Quiescent Current (IQ)
    • Fixed 400kHz Switching Frequency (fSW) with Frequency Dithering
    • Selectable Power-Save Mode (PSM) or Forced Continuous Conduction (FCCM) Mode
    • 0.8V to 35V Output Voltage (VOUT) Range
    • ±1% FB Reference Accuracy at Junction Temperature (TJ) = 25°C
    • Supports Internal FB Resistor Divider for 5V/12V VOUT via Factory Trimming
    • VOUT Discharge Function during Output Over-Voltage Protection (OVP) and EN Shutdown
    • 170mΩ/80mΩ Internal MOSFETs
    • Power Good (PG) Indication

    Typical Application Circuit

    MPQ4583GQVE-AEC1-Z typical application circuit
    MPQ4583GQVE-AEC1-Z typical application circuit, as published in the MPS datasheet.

    Applications

    • Automotive 48V Systems
    • Automotive DC/DC Converters
    • Automotive HVAC Compressors and PTC Heaters
    • Automotive Braking 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 MPQ4583GQVE-AEC1-Z support?
    4.5 V to 90 V. The rated output is 3.5 A.
    Which package and ordering codes apply to the MPQ4583GQVE-AEC1-Z?
    QFN-19; order codes include MPQ4583GQVE-AEC1-Z.
    What are the defining features of the MPQ4583GQVE-AEC1-Z?
    4.5V to 90V Input Voltage (VIN) Range 9μA Quiescent Current (IQ)
    Is the MPQ4583GQVE-AEC1-Z qualified for automotive designs?
    Yes — it is AEC-Q100 qualified. Confirm the grade against the qualification summary in the datasheet before specifying it on a safety-related rail.

    Shenzhen Gaorunxin Technology Co., Ltd

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    Shenzhen Gaorunxin Technology Co., Ltd

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