General Description

The RT8279 is a step-down regulator with an internal power MOSFET. It achieves 5A of continuous output current over a wide input supply range with excellent load and line regulation. Current mode operation provides fast transient response and eases loop stabilization.

Features

● 5A Output Current

● Internal Soft-Start

● 110mΩ Internal Power MOSFET Switch

● Internal Compensation Minimizes External Parts Count

● High Efficiency up to 90

● 25μA Shutdown Mode

● Fixed 500kHz Frequency

● Thermal Shutdown

● Cycle-by-Cycle Over Current Protection

● Wide 5.5V to 36V Operating Input Range

● Adjustable Output Voltage from 1.222V to 26V

● Available In an SOP8 (Exposed Pad) Package

● RoHS Compliant and Halogen Free

Applications

● Distributive Power Systems

● Battery Charger

● DSL Modems

● Pre-regulator for Linear Regulators