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The LDS8830 is a high-efficiency 1x/1.33x/1.5x/2x fractional charge pump capable of driving up to three LEDs at up to 32mA each. LED dimming control is programmable with a one-wire interface enabling current level adjustment from 1mA to 32mA. LED channel matching is supported within +/-1.5%, with current accuracy at +/-2%. Input voltages from 2.5v to 5.5v are supported with efficiency up to 92%. Operation at switching frequencies of 1.3MHz (1.5x mode) and 1MkHz (1.33x and 2x modes) enables low noise input ripple and utilization of small external ceramic capacitors. Other product features include soft start and current limiting, thermal shutdown and short circuit protection, and a low current shutdown mode of 1uA max. The LDS8830 is offered in a tiny 12-lead XQFN 2.5mm x 2.5mm with max height of 0.4mm or in a 16-lead TQFN or 12-lead TDFN 3mm x 3mm package with a max height of 0.8mm.

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