General Description

The MIC2870 is a high-current, high-efficiency flash LED driver for one or two high-brightness camera flash LEDs.

The LED driver current is generated by an integrated inductive boost converter with 2MHz switching frequency which allows the use of a very-small inductor and output capacitor. These features make the MIC2870 an ideal solution for high-resolution camera phone LED flashlight driver applications.

Features

• Up to 1.5A flash LED driving current

− 2.7V to 5.0V input voltage range

• High-efficiency 2MHz VF adaptive boost driver

• Configurable 1 or 2 channel(s) WLED driver

• LED driving current soft-start

• Control through I2C interface or external pins

• Flash inhibit function for GSM pulse synchronization

• True load disconnect

• Flash time-out protection

• 1µA shutdown current

• Available in 16-pin 2mm × 2mm TQFN package

Applications

• Camera phones/mobile handsets

• Cellular phones/smart phones

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

• Handset video light (torch light)

• Digital cameras

• Portable applications