LD7291 Datasheet (Leadtrend)

LD7291, WLED Driver

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 external passive components to provide the solution for

LD7291 Features

* 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 Flashlight z WLED Torch z Backlight Module of Hand-held Device z Constant Current Source g Patent pending Typical Application 1~2 cel