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600mA同步降压稳压器G5725
G5725概述
The G5725 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 G5725 ideally suited for single Li-Ion battery-powered applications. 100% duty cycle provides low dropout operation, ex-tending battery run time in portable systems. Switching frequency is internally set at 1MHz, allowing the use of small surface mount inductors and capacitors. The G5725 internal synchronous switch increase efficiency and eliminates the need for an external Schottky diode. Built-in soft start function eliminates inrush current that could damage the system.
G5725技术特性
„【G5725】 High Efficiency: Up to 93%
„【G5725】Low Quiescent Current: Only 50µA During Operation
„【G5725】Internal Soft Start Function
„【G5725】1A Output Current
„【G5725】2.5V to 6V Input Voltage Range
„【G5725】1MHz Switching Frequency
„【G5725】No Schottky Diode Required
„【G5725】100% Duty Cycle in Dropout Operation
„【G5725】0.6V Reference Allows Low Output Voltages
„【G5725】<1µA Shutdown Current
„【G5725】Current Mode Operation for Excellent Line and Load Transient Response
„【G5725】Over Temperature Protected
„【G5725】RoHS Compliant
G5725应用领域
„ Cellular Telephones
„ Personal Information Appliances
„ Microprocessors and DSP Core Supplies
„ Wireless and DSL Modems
„ Digital Still and Video Cameras
„ MP3 Players
„ Portable Instruments
