General Description

The MIC2871 is a high-current, high-efficiency flash LED driver. The LED driver current is generated by an integrated inductive boost converter with a 2MHz switching frequency which allows the use of very small inductor and output capacitor. These features make the MIC2871 an ideal solution for high-resolution camera phone LED flash light driver applications.

Features

• Up to 1.2A flash LED driving current

• Highly-efficient, synchronous boost driver (up to 94)

• ±5 LED current accuracy

• Control through single-wire serial interface or external control pins

• Input voltage range: 2.7V to 5.5V

• True load disconnect

• Configurable safety time-out protection

• Output overvoltage protection (OVP)

• LED short detection and protection.

• 1µA shutdown current

• Available in 14-pin 3mm × 2mm LDFN package

Applications

• Camera phones/mobile handsets

• Cell phones/smartphones

• LED light for image capture/auto focus/white balance

• Handset video light (torch light)

• Digital cameras

• Portable applications