Global Mixed-mode Technology Inc. G5762/G5762A 2A Step-down DC/DC Features General Description The G5762 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. 2A Output Current 0.15Ω Internal Power MOSFET Switch Stable with Low ESR Output Ceramic Capacitors Up to 95% Efficiency 30µA Shutdown Mode Fixed 385kHz Frequency Thermal Shutdown Cycle-by-Cycle Over Current Protection Wide 6.5V to 24V Operating Input Range Output Adjustable from 1.22V to 21.6V(G5762) Output Adjustable from 0.92V to 21.6V(G5762A) Available in SOP-8 Package 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 30µA 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. Applications PC Monitors DSL Modems Distributed Power Systems Pre-Regulator for Linear Regulators The G5762 requires a minimum number of readily available standard external components. It is available in a SOP-8 package. Ordering Information ORDER NUMBER TEMP. RANGE MARKING PACKAGE (Green) G5762P11U G5762 -40°C to +85°C SOP-8 G5762AP11U G5762A -40°C to +85°C SOP-8 Note: P1: SOP-8 1: Bonding Code U : Tape & Reel Pin Configuration Typical Application Circuit C5 10nF INPUT 6.5V to 24V OFF C1 10µF 35V ON 1 2 7 IN BS EN LX G5762 8 G5762/G5762A BS 1 8 IN 2 7 EN LX 3 6 COMP GND D1 FB SS 5 R1 10.5kΩ R2 10kΩ 1% C3 3.9nF R3 3.9kΩ SS OUTPUT 2.5V/2A 1% 6 4 C6 OPEN 4 5 COMP GND C4 10nF L1 15µH 3 C2 22µF/35V CERAMIC C5 10nF INPUT 6.5V to 24V FB OFF SOP-8 C1 10µF 35V ON 8 C4 10nF 1 2 7 IN BS EN LX D1 G5762A FB SS 5 R1 4.7kΩ 6 4 C6 OPEN OUTPUT 1.1V/2A 1% COMP GND L1 15µH 3 C3 3.9nF R3 3.9kΩ R2 24kΩ 1% C2 22µF/35V CERAMIC TEL: 886-3-5788833 http://www.gmt.com.tw Ver: 0.1 Aug 24, 2009 1