The ISL81801EVAL1Z 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 120W.


  • Wide input range: 9V to 80V
  • Output: 12V 10A
  • 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


Type Title Date
Manual - Development Tools PDF 1.24 MB
Manual - Development Tools PDF 1.24 MB
2 items

Design & Development

Software & Tools

Software Downloads

Type Title Date
PCB Design Files ZIP 984 KB
1 item

Lab on the Cloud

Lab on the Cloud

Use our PC-based GUI to instantly start configuring and testing designs in our virtual lab, no physical board needed.

This solution uses the ISL81801 synchronous full bridge buck-boost for a wide range (9V – 80V) of input voltage and 100kHz – 600kHz switching frequencies.