ANALOGICTECH UNVEILS NEW CURRENT-OUTPUT CHARGE PUMP.

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SUNNYVALE, Calif., Nov. 28 /PRNewswire-AsiaNet/ --

32-Step Serial Control Interface Supports Fine Adjustment of Brightness

Advanced Analogic Technologies Incorporated (AnalogicTech) (Nasdaq: AATI), a developer of power management semiconductors for mobile consumer electronic devices, today announced the AAT3172, a high output, high efficiency current-output charge pump IC for white LED flash applications. The new device supplies up to 600mA of output current across dual regulated current sinks. Each LED channel can be programmed in 32 steps with a single GPIO output through AnalogicTech's AS2Cwire(TM) (Advanced Simple Serial Control(TM)) interface.

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"Cell phone designers embedding higher performance cameras in their next generation products need ICs capable of delivering high power output with excellent control in a small package," said Erik Ogren, Product Marketing Manager for AnalogicTech. "By combining 600mA current with a 32-step digital serial control interface, the AAT3172 gives designers unprecedented ability to deliver optimal LED flash performance across a wide variety of flash applications."

The AAT3172 is a tri-mode device which maximizes efficiency by combining a load switch (1x), fractional (1.5x) and doubling (2x) capability with an internal sensing circuit to match output to LED requirements. The 1x and 1.5x mode allow minimum current draw from the battery during lower LED current operations such as torch or movie light, which operates for a much longer period of time than the flash mode. Dual current sinks allow system designers to use single or dual (separate cathode) flash LED configurations.