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DC762A - LTC3490EDD Demo Board | Boost White LED Driver, 1.8V ≤ VIN ≤ 3.5V, VLED up to 4V @ 350mA

Demonstration circuit 762 is a 350mA, 1W synchronous boost white LED driver featuring the LTC®3490 and a Lumileds Luxeon LED. The input voltage range of the LT3490 is 1V to 3.4V; however the demo board operates with a 1.8V to 3.5V range. The board comes with two AA alkaline battery cells to be stuffed in the battery pack on the back of the PCB. The LED compliance voltage range is 2.8V to 4V. Other features include a low battery detect output and analog dimming control. The LT3490's simple design, low quiescent current and minimal external components make it an ideal solution for space-constrained ~1W flashlight or portable LED driver solutions.

DC762A - Schematic