Analog devices introduces the ADP1655 highly efficient dual white LED flash driver for high resolution camera phones . ADP1655 improves picture and video quality captured in low light using camera phones , Digital still cameras, camcorders, and PDAs

The ADP1655 integrates a 2 MHz synchronous inductive boost convertor, an I2C-compatible interface and a 500 mA current source.

The I2C-compatible interface enables the programmability of timers, currents, and status bit readback for operation monitoring and safety control.

The high switching frequency enables the use of a tiny, low profile 2.2 μH power inductor, and the current source permits LED cathode grounding for thermally enhanced, low EMI and compact layouts.

Main features of the ADP1655 are : Tiny, low profile 2.2 μH power inductor , LED current source for local LED grounding and low EMI , Synchronous 2 MHz PWM boost convertor, no external diode , Reduces high levels of input battery current during flash , Limits battery current drain in torch mode , I2C programmable , currents up to 400 mA in flash mode for two LEDs , currents up to 500 mA in flash mode for one LED with 5% accuracy , currents up to 160 mA in torch mode with 10% accuracy , Flash timer , I2C-compatible control registers , thermal overload protection , output overvoltage Short circuit protection .