LD7291 Datasheet, Leadtrend

z Very few external components z Low ripple and low noise z Low start-up voltage, 0.85V at 1mA z Direct drive maximum 3 WLEDs z High efficiency Applications z WLED Flashl.

Features z Very few external components z Low ripple and low noise z Low start-up voltage, 0.85V at 1mA z Direct drive.

The LD7291 is a high efficiency WLED driver to drive maximum 3 WLEDs from single or 2 battery cells. By using the proprietary topology, the LD7291 can operate under as low as 0.85V to fully utilize the energy of battery. The LD7291 only needs 4 exter.