2MHz, 2-Ch 1.5A+1.5A Flash LED Driver


  • High efficiency synchronous boost converter with 2MHz/4MHz switching frequency option
  • I2C interface programming and hardware STROBE/TORCH control
  • Two-channel independent current sources
    • LED1/LED2: Up to 1.5A
    • Flash/Torch/IR modes
    • Independent LED on/off and current settings
    • Programmable ramp shape and time control
    • Three input low voltage protection modes
    • Torch currents up to 187.5mA (KTD2688) or 375mA (KTD2688A)
    • Flash time-out protection up to 1.60s(KTD2688A)
    • LED cathode ground connection for improved thermal dissipation
  • LED open/short protection
  • I2C fault read back


  • Smartphones and Tablets Camera Flash
  • Digital Cameras

Key Electrical Specifications

Vin(Min) Vin(Max) Output Current(Max) Channels Control Type Package
2.7V 5.5V 3A 2 I2C WLCSP-12

Typical Application Diagram