G5728 - Global Mixed-mode Technology

G5728 1MHz 1A Synchronous Step-Down Regulator

The G5728 is a high efficiency monolithic synchronous buck regulator using a constant frequency, current mode architecture. Supply current during operation is only 50µA and drops to <1µA in shutdown. The 2.5V to 6V input voltage range makes the G5728 ideally suited for single Li-Ion battery-powered applications. 100% duty cycle provides low dropout operation.

Features

„ High Efficiency: Up to 93% „ Low Quiescent Current: Only 50µA During Op- eration „ Internal Soft Start Function „ 1A Output Current „ 2.5V to 6V Input Voltage Range „ 1MHz Switching Frequency „ No Schottky Diode Required „ 100% Duty Cycle in Dropout Operation „ 0.6V Reference Allows Low Output Voltages „ <1µA Shutdown Current „ Current Mode Operation for Excellent Line and Load Transient Response „ Over Temperature Protected „ RoHS Compliant General Description The G5728 is a high efficiency monolithic synchronous buck regulator using a constant frequency, current mode architecture. Supply .