White LED – Simple Step-Up
I’ve got samples of interersting DC/DC converter from TI: TPS61040. Main application is to drive small white LEDs from a battery cell or two. Input voltage range is from 1,8V to 6V. Ideal for two AA or single Li-xx cell. Schematics is very simple. Only few external components are required: a coil, caps and schottky diode:
Led driver TPS61040 schematic