BL9310

BL9310 1.5 MHz, 1A Synchronous Buck Converter FEATURES High Efficiency: Up to 96% 1.5MHz Constant Switching Frequency Current Mode Operation for Excellent Line and Load Transient Response No Schottky Diode Required 2.5V to 5.5V Input Voltage Range 1.0V,1.2V,1.5V,1.8V,2.5V and 3.3V Fixed/Adjustable Output Voltage 100% Duty Cycle in Dropout Mode Low Quiescent Current: 200µA Over temperature Protection Short Circuit Protection Shutdown Quiescent Current < 1µA Space Saving 5-Pin Thin SOT23 Package APPLICATIONS Cellular and Smart Phones Wireless Handsets and DSL Modems Microprocessors and DSP Core Supplies PDAs Digital Still and Video Cameras MP3/MP4/MP5 Players ORDERING INFORMATION BL9310 –XX X XXX ：Package TRN: TSOT23-5 RN: SOT23-5 Features: P: Standard (default, lead free) C: Customized ：Output Voltage 10: 1.0V 12: 1.2V 15: 1.5V 18: 1.8V 25: 2.5V 33: 3.3V AD: Adjustable Portable Instruments GPS Receivers DESCRIPTION The BL9310 is a constant frequency, 1.5MHz, slope compensated current mode PWM stepdown converter working under an input voltage range of 2.5V to 5.5V. This feature makes the BL9310 suitable for single cell Liion battery-powered applications. The internal synchronous rectifier is desired to increase efficiency without an external Schottky diode. 100% duty cycle capability extends battery life in portable devices, while the quiescent current is 200µA at no load, and drops to < 1µA in shutdown. Pulse Skipping Mode operation in...