Brief Description
KTD2681 is the ideal power solution for high-power flash LEDs. It includes a highly integrated synchronous boost converter and two current sources, providing a very small total solution in portable application. It has both I2C interface and hardware STROBE/TORCH pins for maximum control flexibility. The integrated current source on/off and current settings in Flash/Torch/IR modes can be programmed by the I2C interface. It also has three selectable input low voltage protection modes to prevent a system reset under low battery condition.

FEATUREs
• High efficiency synchronous boost converter
   with 2MHz/4MHz switching frequency option
• I2C interface programming and hardware
   STROBE/TORCH control
• Single-channel programmable current source
   ► Flash/Torch/IR modes
      ■ Flash: Up to 1.5A
      ■ Torch: Up to 0.375A
   ► Programmable ramp shape and time control
   ► Three input low voltage protection modes
   ► Flash time-out protection
   ► LED cathode ground connection for improved
      thermal dissipation
• LED open/short protection
• I2C fault read back

APPLICATIONs
• Smartphones and Tablets Camera Flash
• Digital Cameras