2MHz, 3-Ch 1.5A+0.75A+0.3A Flash LED Driver


  • High efficiency synchronous boost converter with 2MHz/4MHz switching frequency option
  • I2C interface programming and hardware STROBE/TORCH control
  • Two current sources and one current sink
    • LED1: Up to 1.5A (7 bits)
    • LED2: Up to 0.75A (6 bits)
    • LED3: Up to 0.3A (6 bits)
    • Flash/Torch/IR modes
    • Independent LED on/off and current settings
    • Programmable ramp shape and time control
    • Three input low voltage protection modes
    • Flash time-out protection
    • LED cathode ground connection for improved thermal dissipation (LED1/LED2)
  • LED open/short protection
  • I2C fault read back (I2C address = 0x63)


  • Smartphones and Tablets Camera Flash
  • Digital Cameras

Key Electrical Specifications

Vin(Min) Vin(Max) Max. Current per Channel Channels Control Type Package
2.7V 5.5V 1500/750/300mA 3 I2C  WLCSP-12

Typical Application Diagram