The ISL85003DEMO1Z and ISL85003ADEMO1Z demonstration boards are intended for use in point-of-load applications sourcing from 4.5V to 18V. The boards are used to demonstrate the performance of the ISL85003 and ISL85003A high-efficiency synchronous buck regulators. The ISL85003 and ISL85003A are offered in a 4mm x 3mm dual flat no lead (DFN) package.

The ISL850xx sync buck regulators support input voltages of 3.8V to 18V and a wide output current range, offering designers a complete portfolio of devices with high-efficiency and reliable performance. For a full list of products, visit the 12V Synchronous Buck Regulator Family page.


  • Input voltage range 4.5V to 18V
  • Current mode control
    • DCM/PWM
    • Internal or external compensation options
    • 500kHz switching frequency option
    • External synchronization up to 2MHz on ISL85003
  • Adjustable soft-start time on the ISL85003A
  • Continuous output current up to 3A
  • Minimal external components required


  • Network and communication equipment
  • Industrial process control
  • Multi-function printers
  • Point-of-load regulators
  • Standard 12V rail supplies
  • Embedded computing

Documentation & Downloads

Title language Type Format File Size Date
Datasheets & Errata
ISL85003, ISL85003A Datasheet 日本語 Datasheet PDF 1.52 MB
User Guides & Manuals
ISL85003DEMO1Z, ISL85003ADEMO1Z User Guide Manual PDF 348 KB
ISL85003DEMO1Z Design Files Design File ZIP 292 KB
ISL85003ADEMO1Z Design Files Design File ZIP 294 KB