DC871A-A, Demonstration Board is a low noise high current LED charge pump featuring the LTC3215 and a cell phone camera flash LED. The board has three versions that are optimized separately for a short LED flash current or a lower but constant LED torch current with 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