Features and Benefits

  • Proprietary Adaptive 1x/1.5x Modes
  • High Efficiency (PLEDs/PBATT), Up to 92%
  • 2% LED Current Matching
  • 28mA/LED Drive Capability
  • Eliminates Ballast Resistor
  • Low 0.1µA Shutdown Current
  • 2.7V to 5.5V Input Voltage Range
  • Tiny 2.1 x 2.1 x 0.6mm UCSP Package
  • Surface-Mount Components
  • Fully Assembled and Tested

Product Details

The MAX1573 evaluation kit (EV kit) is a fully assembled and tested surface-mount circuit board. The EV kit contains the MAX1573, a white LED driver with a high-efficiency charge pump. The EV kit accepts a 2.7V to 5.5V input voltage and drives up to 4 white LEDs with regulated constant current for uniform intensity. The MAX1573 runs at 1MHz fixed frequency, allowing tiny external components. An EV kit is available for both the UCSP™ and the TQFN packages.


  • Cell Phones/Smartphones
  • MP3 Players
  • Other Handhelds with Color Displays
  • PDAs, Digital Cameras, and Camcorders

Applicable Parts

Documentation & Resources