The ISL81601EVAL1Z and ISL81601EVAL2Z evaluation boards feature the ISL81601, a 60V high voltage synchronous buck-boost controller that offers external soft-start and independent enable functions, and integrates UV/OV/OC/OT protections. A programmable switching frequency ranging from 100kHz to 600kHz helps to optimize inductor size while the strong gate driver delivers up to 20A for the buck-boost output.


  • Wide input range: 9V to 60V (for ISL81601EVAL1Z)
  • Wide input range: 32V to 60V (for ISL81601EVAL2Z)
  • Bidirectional operation
  • High light-load efficiency in pulse skipping DEM operation
  • Optional DEM/PWM operation
  • Optional CC/HICCUP OCP protection
  • Supports prebias output with soft-start
  • Power-good (PGOOD) indicator
  • OVP, OTP and UVP protection
  • Back biased from output to improve efficiency (for ISL81601EVAL1Z)


  • Battery backup
  • Type-C power supply and chargers
  • Battery powered industrial applications
  • Aftermarket automotive
  • Redundant power supplies
  • Robots and drones
  • Medical equipment
  • Security surveillance

Documentation & Downloads

Title Other Languages Type Format File Size Date
Datasheets & Errata
ISL81601 Datasheet Datasheet PDF 2.31 MB
ISL81601 Datasheet Datasheet PDF 2.27 MB
ISL81401/ISL81041A Datasheet Datasheet PDF 2.01 MB
User Guides & Manuals
ISL81601EVAL2Z User Guide Manual PDF 1.38 MB
ISL81601EVAL1Z User Guide Manual PDF 1.45 MB
Application Notes & White Papers
Design Considerations for a Bidirectional DC/DC Converter 日本語, 简体中文 White Paper PDF 759 KB
Achieve up to 99% Efficiency in a Robust Battery Backup System Using a True Bidirectional Buck-Boost Controller 日本語, 简体中文 White Paper PDF 351 KB
ISL81601EVAL2Z Design Files Design File ZIP 1.68 MB
ISL81601EVAL1Z Design Files Design File ZIP 977 KB