AT1305 Datasheet | Aimtron Technology

Features - 0.8V Low Start-Up Input Voltage - Up to 90%Efficiency - Adjustable 100m A Output with 1 Alkaline Cell or 200m A Output with 2 Alkaline Cell Battery input. - 1.8V/3.0V/3.3V/300m A Output with USB Power input. - Small Number of External ponents needed - Load Disconnects from Input in Shutdown - Power good output - 32µA Quiescent(Switch OFF) Supply current - 1µA Shutdown Mode Supply current - 8-Pin TSSOP package General Description The AT1305 is a PFM step-up DC/DC converter with LDO for applications using 1 Cell or 2 Cell Alkaline battery and USB applications. Besides, the 32µA low quiescent current together with high efficiency maintains long battery life time. It provides a constant output voltage for inputs that vary above and below the output voltage. Applications - MP3 - Power source for battery-powered equipment - Power source for cameras, camcorders, VCRs, PDAs, electronic data banks, and hand-held munication equipment 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 : http://.aimtron..tw 2/8/2006 REV:1.1 Email: service@aimtron..tw 1 Preliminary Product Information PFM Step-Up DC/DC Converter with LDO Pin Configuration Ordering Information Part number AT1305 AT1305_GRE AT1305 A AT1305 A_GRE AT1305 B AT1305 B_GRE Package 8-pin Plastic TSSOP 8-pin Plastic TSSOP, Green 8-pin Plastic TSSOP 8-pin Plastic TSSOP, Green 8-pin Plastic TSSOP 8-pin Plastic TSSOP, Green Remarks Date Code ,Date Code with one bottom line Date Code ,Date Code with one bottom line Date Code ,Date Code with one bottom line AT1305:LDO set to 3.3V AT1305AP:LDO set to 3.0V AT1305BP:LDO set to 1.8V - For more marking information, contact our sales representative directly Pin Description Pin No. Symbol I/O Description 1 2 3 4 5 6 7 8 LX EN /ENPB GND PG FB OUT VDD O I I O I O - Switching Output...