AT1309

www.DataSheet4U.com AT1309 Preliminary Product Information Micro-Power Step up DC-DC Converter Feature Operating Voltage:2.5V to 6.0V. High Operating Frequency: 1.4MHz High Output Voltage: Up to 28V Shutdown Current <1µA Digital Dimming Control. Built-in Cycle-by Cycle Current-Limiting. Built-in Soft-Start Function. ±1.5% 1.23V Reference Voltage Tiny SOT-25 Package Description The AT1309 step-up converter is designed for small or medium size LCD panel of high bias voltage with a constant current to provide PDAs, and other hand-held devices. It features a fast 1.4 MHz current-mode PWM control with a built-in 0.3 Ω N-MOS that allows for smaller capacitor and inductor. Fault condition protection uses cycle-by -cycle current limiting to sense maximum inductor current and thermal protection. Also included soft-start eliminates inrush current during start-up. The AT1309 is available in 5-pin SOT-25 packages. Application STN/OLED Bias Personal Digital Assistants(PDAs) DSC 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 3/2/2006 REV:1.1 Email: [email protected] 1 AT1309 Preliminary Product Information Micro-Power Step up DC-DC Converter Pin Configuration Ordering Information Part number AT1309X AT1309X_GRE : Date Code *For more marking information, con...