General Description
The AAT3105 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 matching.

FEATUREs
• Drives up to 4 LEDs at up to 30mA each
• Automatic Switching Between 1x and 2x Modes
• 0.85MHz Switching Frequency
• Linear LED Output Current Control
• Universal PWM Interface
• ±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
• Cell Phones
• Digital Still Cameras
• MP3 Players
• Personal Data Assistants (PDAs)