MPQ4430 - Step-Down Converter

Monolithic Power Systems

Datasheet Details

Part number	MPQ4430
Manufacturer	Monolithic Power Systems
File Size	2.14 MB
Description	Step-Down Converter
Datasheet	MPQ4430 Datasheet

General Description

The MPQ4430 is a frequency-programmable (350kHz to 2.5MHz), synchronous, step-down, switching regulator with integrated internal highside and low-side power MOSFETs.

It provides up to 3.5A of highly efficient output current with current mode control for fast loop response.

The wide 3.3V to 36V input range accommodates a variety of step-down applications in automotive input environments and is ideal for batterypowered applications due to its extremely low quiescent current.

Overview

The Future of Analog IC Technology.

Key Features

include soft start (SS), external clock synchronization, enable (EN) control, and a power good (PG) indicator. Highduty cycle and low dropout mode are provided for automotive cold-crank condition. Over-current protection (OCP) with valleycurrent detection is employed to prevent the inductor current from running away. Hiccup mode reduces the average current in shortcircuit condition greatly. Thermal shutdown provides reliable and fault-tolerant operation. The MPQ4430 is available in a QFN-16 (3mm.

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