Monolithic Power Systems MP4320GDE
The MP4320 is a configurable-frequency (350kHz to 1.8MHz), 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 0.5A 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. | MP4320GDE |
|---|---|
| Datasheet | MP4320GDE Download |
| Manufacturer |  Monolithic Power Systems |
| Description | 36V 0.5A 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 a wide 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 helps prevent 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 MP4320 is available in a QFN-12 (2mmx3mm) package with wettable flanks.FEATURES
● Designed for Aftermarket AutomotiveAPPLICATIONS
: o Survives 42V Load Dump o Supports 3.1V Cold Crank o Up to 0.5A of Continuous Output Current (IOUT) o Continuous Operation Up to 36V o -40°C to +125°C Junction Temperature (TJ) RangeFEATURES
(continued)● Increases Batt...
