General Description

The MP1583 is a step-down regulator with a built in internal Power MOSFET. It achieves 3A continuous output current over a wide input supply range with excellent load and line regulation.

Features

ƒ 3A Output Current

ƒ Programmable Soft-Start

ƒ 100mΩ Internal Power MOSFET Switch

ƒ Stable with Low ESR Output Ceramic Capacitors

ƒ Up to 95 Efficiency

ƒ 20µA Shutdown Mode

ƒ Fixed 385KHz frequency

ƒ Thermal Shutdown

ƒ Cycle-by-Cycle Over Current Protection

ƒ Wide 4.75 to 23V operating Input Range

ƒ Output Adjustable From 1.22 to 21V

ƒ Under Voltage Lockout

ƒ Available in 8 pin SOIC Package

ƒ 3A Evaluation Board Available

Applications

ƒ Distributed Power Systems

ƒ Battery Charger

ƒ Pre-Regulator for Linear Regulators