T6309B - Micropower Step-up DC/DC Converter
T6309B Features
* Matched LED Current with Overvoltage www.DataSheet4U.com Protection
* Drives LEDs in series
* Up to 85% Efficiency
* Low 400mV Feedback Reference, Optional 1.19V Feedback Reference
* Internal Current Limit 250mA
* Under Voltage Lock Out Circuits