台湾致新科技 2A降压IC G5655P11U SOP-8封装

　　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.

　　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