General Description

The RT8251 is a monolithic step-down switch mode converter with a built-in internal power MOSFET. It achieves 5A 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

● Wide Operating Input Voltage Range : 4.75V to 24V

● Adjustable Output Voltage Range : 0.8V to 15V

● Output Current up to 5A

● 25μA Low Shutdown Current

● Internal Power MOSFET : 70mΩ

● High Efficiency up to 95

● 570kHz Fixed Switching Frequency

● Stable with Low ESR Output Ceramic Capacitors

● Thermal Shutdown Protection

● Cycle-By-Cycle Over Current Protection

● RoHS Compliant and Halogen Free

Applications

● Distributed Power Systems

● Battery Charger

● DSL Modems

● Pre-regulator for Linear Regulators