MPQ4321 - Synchronous Step-Down Converter

Monolithic Power Systems

General Description

The MPQ4321 is a frequency-configurable (350kHz to 2.5MHz), synchronous, step-down switching converter with integrated internal highside and low-side power MOSFETs.

The device provides 1A of highly efficient output current with peak current mode control.

Key Features

Designed for Automotive.

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MPQ4321 synchronous step-down converter by Monolithic Power Systems - Datasheet Preview

Datasheet Details

Part number	MPQ4321
Manufacturer	Monolithic Power Systems
File Size	3.59 MB
Description	Synchronous Step-Down Converter
Datasheet	MPQ4321 Datasheet

Other Datasheets by Monolithic Power Systems

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MPQ4322C	Synchronous Step-Down Converter
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Full PDF Text Transcription (Reference)

The following content is an automatically extracted verbatim text from the original manufacturer datasheet and is provided for reference purposes only.

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MPQ4321 42V Load Dump Tolerant, 1A, Ultra-Compact, Low Quiescent Current, Synchronous Step-Down Converter, AEC-Q100 Qualified DESCRIPTION The MPQ4321 is a frequency-configurable (350kHz to 2.5MHz), synchronous, step-down switching converter with integrated internal highside and low-side power MOSFETs. The device provides 1A of highly efficient output current with peak current mode control. The wide 3.3V to 36V input range with 42V load dump tolerance accommodates a variety of stepdown applications in automotive input environments. A 1μA shutdown mode quiescent current allows the device to be used in batterypowered applications.