G5759

Global Mixed-mode Technology G5759 400kHz 4A Synchronous Step-down DC/DC Features „ 4A Output Current „ Stable with Low ESR Output Ceramic Capaci- tors „ Up to 90% Efficiency „ 25µA Shutdown Mode „ Fixed 400kHz Frequency „ Thermal Shutdown „ Cycle-by-Cycle Over Current Protection „ Wide 7V to 18V Operating Input Range „ Available in DIP-8 and SOP-8 (FD) Package Applications „ PC Monitors „ DSL Modems „ Distributed Power Systems „ Pre-Regulator for Linear Regulators General Description The G5759 is a monolithic step-down switch mode regulator with a built in internal power MOSFET. It achieves 4A 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. Programmabl...