AIC2341

Preliminary AIC2341 1.0A Output, 2.5MHz Synchronous Buck-Boost DC/DC Converter FEATURES Regulated Output with Input Voltage Above, Below, or Equal to the Output. 1A Output Current at 3.3V in Step Down Mode (VIN = 3.6V to 5.5V). Up to 800mA Output Current at 3.3V in Boost Mode (VIN > 2.8V). Single Inductor. 2.5V to 5.5V Input Voltage Range. Fixed and Adjustable Output Voltage Options from 1.8V to 5.5V. Up to 95% Efficiency. Stable with Low ESR Ceramic Capacitors. No Schottky Diode Required. Output Disconnect in Shutdown. <1µA Shutdown Current. <60µA Quiescent Current. Power Saving Mode for Improved Light Efficiency Operation. Forced Fixed Frequency Operation Mode. Load Disconnect During Shutdown. Undervoltage Lockout Protection. APPLICATIONS All Three-Cell Alkaline, NiCd or NiMH or Single-Cell Li Battery MP3 Players Handheld Instruments Digital Cameras Smart Phones Portable GPS Units Miniature Hard Disk Drive Power TYPICAL APPLICATION CIRCUIT DESCRIPTION The AIC2341 is a 1.0A outp...