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Technical content
Features
2A Output Current 0.18Ω Internal Power MOSFET Switch Stable with Low ESR Output Ceramic Capaci- tors Up to 95% Efficiency 30µA Shutdown Mode Fixed 380kHz Frequency Thermal Shutdown Cycle-by-Cycle Over Current Protection Wide 4.75V to 24V Operating Input Range Output Adjustable from 1.22V to 21.6V(G5754) Output Adjustable from 0.92V to 21.6V(G5754A) Available in SOP-8 Package
Applications
PC Monitors DSL Modems Distributed Power Systems Pre-Regulator for Linear Regulators General Description The G5754/G5754A 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 re- sponse and eases loop stabilization. Fault condition protection includes cycle-by-cycle cur- rent limiting, output short circuit protection and thermal shutdown. In shutdown mode the regulator draws 30µA of supply current. Programmable soft-start over- writes the internal soft-start for various requirement of output power up ramp and minimizes the inrush supply current at initial startup. The G5754/G5754A r equires a minimum number of readily available standard external components. It is available in a SOP-8 package.
Ordering Information
NUMBER MARKING TEMP. RANGE PACKAGE (Green) G5754P11U G5754 -40 °C to +85°C SOP-8 G5754AP11U G5754A -40 °C to +85°C SOP-8 Note: P1: SOP-8 1: Bonding Code U : Tape & Reel Pin Configuration Typical Application Circuit SOP-8 G5754/G5754A IN SS / NC BS LX EN COMP FB GND OUTPUT 2.5V/2AR1 10.5kΩ 15µH 10nF 5 7 BSIN EN SS / NC LX FB COMPGND G5754 10µF 25V 22µF/6.3V CERAMIC 10kΩ ON 4.7nF 7.5kΩ OPEN INPUT 12V OFF C4 10nF / Open not used OUTPUT 2.5V/2AR1 17.2kΩ 15µH 10nF 5 7 BSIN EN SS / NC LX FB COMPGND G5754A 10µF 25V 22µF/6.3V CERAMIC 10kΩ ON 4.7nF 7.5kΩ OPEN INPUT 12V OFF C4 10nF / Open not used SOP-8 G5754/G5754A IN SS / NC BS LX EN COMP FB GND OUTPUT 2.5V/2AR1 10.5kΩ 15µH 10nF 5 7 BSIN EN SS / NC LX FB COMPGND G5754 10µF 25V 22µF/6.3V CERAMIC 10kΩ ON 4.7nF 7.5kΩ OPEN INPUT 12V OFF C4 10nF / Open not used OUTPUT 2.5V/2AR1 17.2kΩ 15µH 10nF 5 7 BSIN EN SS / NC LX FB COMPGND G5754A 10µF 25V 22µF/6.3V CERAMIC 10kΩ ON 4.7nF 7.5kΩ OPEN INPUT 12V OFF C4 10nF / Open not used