Features

  • 3 V to 6 V Input Voltage Range
  • Two Outputs Each up to 27 V
  • 0.7 A Integrated Switch
  • Built-in Power Diode
  • 1.2 MHz Fixed PWM Frequency
  • Individually Programmable Output Current
  • Input-to-Output Isolation
  • Built-in Soft Start
  • Overvoltage Protection
  • Up to 83% Efficiency
  • Up to 30 kHz PWM Dimming Frequency
  • Availiable in a 10 Pin, 3 × 3 mm QFN Package

Documentation

Current Regulation

IO = VISET/RSET x KSET

  • IO = output current
  • VISET = Iset pin voltage (1.229V typical)
  • RSET = Iset pin resistor value
  • KISET = current multiplier (920 typical)

Schematic

TPS61150-wled-and-lcd-backlight-applications

TPS61150A-backlight_driver-schematic