KB3429

Kingbor Technology Co.,Ltd TEL:(86)0755-26508846 FAX:(86)0755-26509052 ˖ ˖ KB3429 Synchronous Boost DC/DC Regulator kB3429 Features z z www.DataSheet4U.com Description The kB3429 is high efficiency Up to 96% Efficiency Low voltage start-up˖0.82V Shut-down current: < 1µA Input voltage˖0.5V̚4.4V Output voltage˖2.5V̚4.3V (Up to 5V with Schottky) Low switch on resistance RDS(ON), Internal switch: 0.35¡ 0.5MHz fixed frequency switching High switch on current: 1A Short-Circuit protection Low Profile (1mm) SOT-23 Package synchronous, step-up DC/DC converters optimized to provide a high efficient solution to medium power systems. The devices work under the input voltage between 0.6V and 4.4V with a 1.5MHz fixed frequency switching. These features minimizes overall solution footprint by allowing the use of tiny, low profile inductors and ceramic capacitors. The kB3429 is capable of supplying an output voltage between 2.5V and 4.3V, the internal synchronous switch is desired to provide high efficiency without Schottky. The devices also featured providing up to z z z z z z z z Applications z z z z z z Digital cameras and MP3 Palmtop computers / PDAs Cellular phones Wireless handsets and DSL modems PC cards Portable media players 260mA from a single AA cell input or up to 600mA from a 2-cell AA with a 3V/3.3V output. The kB3429 regulators are available in the industry standard SOT-23-6 power packages (or upon request). kB3429 Ver: 1.3 - 1 - Kingbor Technology Co.,Ltd TEL:(86...