Features and Benefits

  • Constant-Current Regulation for Even LED Illumination
  • Up to 88% Efficiency Driving Six LEDs
  • Analog or PWM Dimming Control of LED Intensity
  • Small, Low-Profile Components
  • 2.7V to 5.5V Input Range
  • Tiny TDFN 3mm x 3mm IC Package
  • Fully Assembled and Tested

Product Details

The MAX1553 evaluation kit (EV kit) is a fully assembled and tested printed circuit board (PCB) with two complete circuits for evaluating the MAX1553 and MAX1554 white LED step-up converters. The MAX1553 circuit operates from 2.7V to 5.5V and delivers an adjustable 0 to 20mA to drive up to six white LEDs connected in series. The MAX1554 circuit operates from 3.15V to 5.5V and delivers an adjustable 0 to 20mA for driving up to 10 white LEDs in series.


  • Cell Phones
  • Color Display Backlight
  • PDA, Palmtop, and Wireless Handhelds

Documentation & Resources