Global Mixed-mode Technology
G5695
1.4MHz 1A Synchronous Step-Down Regulator
Features
High Efficiency: Up to 93% ...
Global Mixed-mode Technology
G5695
1.4MHz 1A Synchronous Step-Down
Regulator
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 1.4MHz 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 G5695 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 G5695 ideally suited for single Li-Ion battery-powered applications. 100% duty cycle provides low dropout operation, extending battery run time in portable systems. Switching frequency is internally set at 1.4MHz, allowing the use of small surface mount inductors and capacitors. The internal synchronous switch increase efficiency and eliminates the need for an external
Schottky diode. Built-in soft start function eliminates in-rush current that could damage the system.
Applications
Cellular Telephones Personal Information Appliances Microprocessors and DSP Core Supplies Wireless and DSL Modems Digital Still and Video Cameras MP3 Players Portable Instruments
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