Monolithic Power Systems MP4322GDE
The MP4322 is a configurable-frequency (350kHz to 2.5MHz), synchronous, step-down switching converter with integrated internal highside and low-side power MOSFETs (HS-FET and LS-FET, respectively). The device provides up to 2A of highly efficient output current (IOUT) with peak current mode control. The wide 3.3V to 36V input voltage (VIN) range and 42V load dump tolerance accommodates a variety of step-down applications in automotive input environments.| Part No. | MP4322GDE |
|---|---|
| Datasheet | MP4322GDE Download |
| Manufacturer |  Monolithic Power Systems |
| Description | 36V 2A Synchronous Step-Down Converter |
| Buy | Stock & Price |
DESCRIPTION
A 1μA shutdown current (ISD) allows the device to be used in batterypowered applications. High power conversion efficiency across the entire load range is achieved by scaling down the switching frequency (fSW) under light-load conditions to reduce switching and gate driver losses. An open drain power good (PG) signal indicates whether the output is within 94.5% to 105.5% of its nominal voltage. Frequency foldback prevents inductor current (IL) runaway during start-up. Thermal shutdown provides reliable, fault-tolerant operation. High duty cycle and low-dropout (LDO) mode are provided for automotive cold-crank conditions. The MP4322 is available in a QFN-12 (2mmx3mm) package with wettable flanks.FEATURES
● Designed for Aftermarket AutomotiveAPPLICATIONS
: o 42V Load Dump Tolerance o Supports 3.1V for Cold Crank Conditions o Up to 2A of Continuous Output Current o Continuous Operation Up to 36V o -40°C to +125°C Junction Temperature (TJ) RangeFEATURES
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