DC871A-C

DC871A-C demonstration circuit is a low noise high current LED charge pump featuring the LTC3215EDD and a cell phone camera flash LED. The board is powered by a single lithium ion battery input voltage range of 2.9V to 4.4V or three AAA batteries in series. The lithium ion battery input voltage range, high LED flash current and separate torch mode current setting, internal charge pump switches, inductorless solution, minimal external components, and simple design make the LTC3215 the top solution for space-constrained cellular telephone camera flash solutions. The LTC3215 is very similar to the LTC3216, but with two less pins and a slightly lower maximum flash current of 700mA as opposed to 1000mA. DC871A-C can be built with three AAA batteries in series in a battery pack on the back to simulate the capabilities of a typical lithium ion cellular telephone battery.