G5671

Global Mixed-mode Technology G5671 3A Synchronous Step-Down DC/DC Features „ 3A Output Current „ 75mΩ Internal Power MOSFET Switch „ Stable with Low ESR Output Ceramic Capaci- tors or POSCAPs „ 85% Efficiency at 2.5A Output Current (5V->1.8V) „ Less Than 1µA Shutdown Current „ 1MHz Switching Frequency „ Power Good Opened Drain Output „ Thermal Shutdown „ Cycle-by-Cycle Over Current Protection „ Output Adjustable from 0.6V to VIN „ Available in TDFN3X3-10 Package Applications „ NB „ Distributed Power Systems „ Pre-Regulator for Linear Regulators General Description The G5671 is a monolithic step-down switch mode regulator with a built in internal power MOSFET. It achieves a continuous output current at 1MHz switching frequency with excellent load and line regulation. Current mode operation provides fast transient response and eases of loop stabilization. Power good function delivers power supply ready signal to the load. Fault condition protection includes cycle-by-c...