The ISL81801EVAL2Z evaluation board features the ISL81801, an 80V bidirectional synchronous buck-boost controller with constant voltage/constant current output. A programmable switching frequency ranging from 100kHz to 600kHz helps to optimize inductor size while the strong gate driver enables high power buck-boost output. This board is designed for high current applications up to 240W.


  • Wide input range: 9V to 80V
  • Output: 48V 5A
  • Frequency: 200kHz
  • Bidirectional operation
  • High light-load efficiency in pulse skipping DEM operation
  • Optional DEM/PWM operation
  • Optional CC/HICCUP OCP protection
  • Supports pre-bias output with programmable soft-start
  • Power-good (PGOOD) indicator
  • OVP, OTP and UVP protection


  • UPS/Storage systems
  • Battery powered industrial applications
  • Renewable energy
  • Aftermarket automotive
  • Redundant power supplies
  • Robots and drones
  • Medical equipment
  • Building and industrial automation
  • Security surveillance


Title language Type Format File Size Date
star ISL81801EVAL2Z User Manual
Manual - Development Tools
PDF 1.31 MB
ISL81801EVAL2Z User's Manual Rev.1.00
Manual - Development Tools
PDF 1.31 MB


Title language Type Format File Size Date
ISL81801EVAL2Z Design Files
PCB Design Files
ZIP 793 KB