DESCRIPTION

The MP4420A is a high-efficiency, synchronous, rectified, step-down, switch-mode converter with built-in power MOSFETs. It offers a very compact solution that achieves 2A of continuous output current with excellent load and line regulation over a wide input supply range. 

The MP4420A uses synchronous mode operation to achieve higher efficiency over the output current load range. Current-mode operation provides fast transient response and eases loop stabilization.

Full protection features include over-current protection (OCP) and thermal shutdown. 

The MP4420A requires a minimal number of readily available, standard, external components and is available in a compact, 8-pin, TSOT23 package.

FEATURES

Wide 4V to 36V Continuous Operating Input Range

90mΩ/55mΩ Low RDS(ON) Internal Power MOSFETs

High-Efficiency Synchronous Mode Operation

Default 410kHz Switching Frequency

Synchronizes to a 200kHz to 2.2MHz External Clock

High Duty Cycle for Automotive Cold Crank

Forced CCM

Internal Soft Start

Power Good

Over-Current Protection (OCP) and Hiccup

Thermal Shutdown

Output Adjustable from 0.8V

Available in a TSOT23-8 Package

APPLICATIONS

Automotive

Industrial Control System

Distributed Power Systems

All MPS parts are lead-free, halogen-free, and adhere to the RoHS directive. For MPS green status, please visit the MPS website under Quality Assurance. "MPS" and "The Future of Analog IC Technology" are registered trademarks of Monolithic Power Systems, Inc.