G5684

Global Mixed-mode Technology Inc. Step-Down DC/DC G5684 Features „ 4A Output Current „ 75mΩ Internal Power MOSFET Switch „ Stable with Low ESR Output Ceramic Capaci- tors „ Up to 95% Efficiency „ Less Than 1µA Shutdown Current „ Wide Switching Frequency Range from 300kHz~1.4MHz „ Thermal Shutdown „ Cycle-by-Cycle Over Current Protection „ Output Adjustable from 0.8V to VIN „ Available in SOP-8 (FD) Package Applications „ TV „ Distributed Power Systems „ Pre-Regulator for Linear Regulators General Description The G5684 is a monolithic step-down switch mode regulator with a built in internal power MOSFET. It achieves 4A continuous output current over a wide switching frequency range with excellent load and line regulation. Current mode operation provides fast transient response and eases of loop stabilization. Fault condition protection includes cycle-by-cycle current limiting, output short circuit protection and thermal shutdown. In shutdown mode the regulator draws less than 1µA of supply current. Internal soft-start minimizes the inrush supply current at initial startup. The G5684 requires a minimum number of readily available standard external components. It is available in SOP-8 (FD) package. Ordering Information ORDER NUMBER G5684F11U Note: F1: SOP-8 (FD) 1 : Bonding Code U : Tape & Reel Pin Configuration MARKING G5684 TEMP. RANGE -40°C to +85°C PACKAGE (Green) SOP-8 (FD) Typical Application Circuit COMP 1 G5684 8 FB GND 2 EN 3 Thermal Pad 7 FREQ 6 LX* IN 4...