产品详情

General Description

The G5655 is a monolithic step-down switch mode regulator with a built in internal power MOSFET. It achieves 2A 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.

Fault condition protection includes cycle-by-cycle current limiting, output short circuit protection and thermal shutdown. In shutdown mode the regulator draws 25μA of supply current. Programmable soft-start overwrites the internal soft-start for various requirement of output power up ramp and minimizes the inrush supply current at initial startup.

The G5655 requires a minimum number of readily available standard external components. It is available in a SOP-8 and MSOP-10 (FD) package.

Features

■ 2A Output Current

■ 0.18Ω Internal Power MOSFET Switch

■ Stable with Low ESR Output Ceramic Capacitors

■ Up to 95% Efficiency

■ 25μA Shutdown Mode

■ Fixed 380kHz Frequency

■ Thermal Shutdown

■ Cycle-by-Cycle Over Current Protection

■ Wide 4.75V to 20V Operating Input Range

■ Output Adjustable from 0.92V to 12V

Applications

■ PC Monitors

■ DSL Modems

■ Distributed Power Systems

■ Pre-Regulator for Linear Regulators