MPQ4573-AEC1 4.5-60V, 2.5A, 2.2MHz Synchronous Step-Down Converter QFN-12

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MPQ4573-AEC1 4.5-60V, 2.5A, 2.2MHz Synchronous Step-Down Converter QFN-12

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pMPS MPQ4573-AEC1 — synchronous step-down converter, 4.5-60V input, 2.5A output, 2.2 MHz, QFN-12./p

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Automotive AEC-Q100 DC-DC converter MPS Buck Converter Step-Down Converter QFN-12

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MPQ4573-AEC1 4.5-60V, 2.5A, 2.2MHz Synchronous Step-Down Converter QFN-12

MPS MPQ4573-AEC1 is a synchronous step-down converter that accepts 4.5 V to 60 V input, delivers 2.5 A, switches at 2.2 MHz, supplied in a QFN-12 package.

Key Specifications

Part Number	MPQ4573-AEC1
Input Voltage	4.5 V to 60 V
Output Current	2.5 A
Switching Frequency	2.2 MHz
Quiescent Current	40 uA
Topology	Synchronous Step-Down Converter
Package	QFN-12
Ordering Codes	MPQ4573-AEC1

Features

Wide 4.5V to 60V Operating Input Range
2.5A Continuous Output Current (IOUT)
High-Efficiency, Synchronous Mode Control
250mΩ/45mΩ Internal Power MOSFETs
Up to 2.2MHz Configurable Frequency
180° Out-of-Phase SYNCO Clock
40μA Quiescent Current (IQ)
Low 2μA Shutdown Current
FB Tolerance: 1% at Room Temperature, 2% across the Full Temperature Range (-40°C to +125°C)
Selectable Advanced Asynchronous Modulation (AAM) Mode or Forced Continuous Conduction Mode (FCCM) during Light-Load Operation

Applications

Automotive Infotainment Systems
Automotive Lamps and LEDs
Automotive Motor Control

Design Notes

The step-down topology needs an inductor and output capacitor sized for the ripple at the switching frequency, not just the DC load.
Keep the input loop short — high di/dt at the switch node sets conducted EMI.
Power switches are integrated, so the thermal path is the PCB copper under the pad.
AEC-Q100 qualification suits this part to automotive rails.
Package QFN-12 — check the land pattern in the datasheet before layout.