AT1366B

www.DataSheet4U.com AT1366B Preliminary Product Information 1MHz,800mA Synchronous Buck Converter Features High efficiency (95%) possible No Schottky Diode Required 800mA Output Current at 5V input 3.3V output Oscillation frequency 1.0MHz Built-in ON/OFF Function Built-in Short Circuit Protection Low Dropout Operation: 100% Duty Cycle Stand-by current max. 1µA Input voltage: 2.5V ~5.5V Applications Power Supply for portable devices General Description The AT1366B provides complete control for a DC/DC converter optimized for high-performance microprocessor applications. It is operated on current mode architecture for excellent line and load transient response. 1MHz operation frequency is allowing the use of small surface mount inductor and capacitor. The internal synchronous switch increases efficiency and eliminates the need for an external Schottky diode. The AT1366 is a family of low-noise synchronous step-down DC/DC converters that is ideally suited for systems powered from a 1-cell Li-ion battery or from a 3-cell to 4-cell NiCd, NiMH, or alkaline battery. It can also be used to USB-Based power system. Block Diagram Aimtron reserves the right without notice to change this circuitry and specifications. 7F, No.9, PARK AVENUE II, Science-Based Industrial Park, Hsinchu 300,Taiwan, R.O.C. Tel: 886-3-563-0878 Fax: 886-3-563-0879 WWW: http://www.aimtron.com.tw 1/18/2006 REV:1.2 Email:[email protected] 1 AT1366B Preliminary Product Information 1MHz,80...