General Description
The AAT3104 is a charge-pump based, current-source white LED driver capable of driving one to four LEDs up to 30mA, each. It automatically switches between 1x mode and 2x mode to maintain the highest efficiency and optimal LED current accuracy and matching.

FEATUREs
• Drives up to 4 LEDs at up to 31mA each
• Automatic Switching Between 1x and 2x Modes
• 1MHz Switching Frequency
• Linear LED Output Current Control
• Single-wire, S2Cwire Interface
    AAT3104-1: 16-step
    AAT3104-2: 32-step
• ±10% LED Output Current Accuracy
• ±3% LED Output Current Matching
• Low-current Shutdown Mode
• Built-in Thermal Protection
• Automatic Soft-start
• Available in 2x2mm SC70JW-10 Package

APPLICATIONs
• Cordless Phone Handsets
• Digital Cameras
• Mobile Phone Handsets
• MP3 and PMP Players