Document
Global Mixed-mode Technology
G5798/G5798A G5799/G5799A
500kHz 2A/3A Synchronous Step-down DC/DC
Features
2A/3A Output Current Internal 100mΩ RDS-ON High-Side and
100mΩ RDS-ON Low-Side Power Switches Available two kinds of delay in PG
PG pin is detect FB until threshold then immediately react in G579X PG pin is detect FB until threshold then delay 220mS react in G579XA Stable with Low ESR Output Ceramic Capacitors 32µA Shutdown Mode Fixed 500kHz Frequency Thermal Shutdown Cycle-by-Cycle Over Current Protection Wide 4.5V to 24V Operating Input Range Vref =0.8V +-2% Internal soft start Available in SOP-8/SOP-8 (FD) Package
Applications
DSL Modems Distributed Power Systems Pre-Regulator for Linear Regulators
General Description
The G5798/G5799 is a monolithic step-down switch mode regulator with a built in internal power MOSFET. It achieves 2A/3A continuous output current over a wide input supply range with excellent load and line regulat.