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The LDS8620 is a high efficiency multi- mode fractional charge pump with ultra low feedback voltage that can drive up to two high- current LEDs.

To configure one or both LED[A/B] outputs and to set the LED current for torch (or movie-mode) or full-flash operation, the LDS8620's logic interface at its EN/SET pin implements an industry-common, single-wire protocol. Its internal current control register is 6 bits deep, providing a 1.5mA LED current resolution from 0.5mA to 96 mA. Single-wire LED configuration/control interface is very useful in flip-style cell phones where the high-current LED and the LED driver are found on opposite sides of a cellphone's hinge.

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