The ISL91107IRN-EVZ and ISL91107IRA-EVZ platforms allow quick evaluation of the high performance features of the ISL91107IR buck-boost regulator.

The ISL91107IR is a high-current buck-boost switching regulator for systems using new battery chemistries. It uses Renesas' proprietary buck-boost algorithm to maintain voltage regulation, while providing excellent efficiency and very low output voltage ripple when the input voltage is close to the output voltage.


  • Small, compact design
  • Jumper selectable EN (enabled/disabled)
  • Jumper selectable mode (auto PFM/forced PWM)
  • Connectors, test points and jumpers for easy probing


  • Smartphones and tablet PCs
  • Wireless communication devices
  • Optical modules networking equipment

Documentation & Downloads

Title Other Languages Type Format File Size Date
Datasheets & Errata
ISL91107IR Datasheet Datasheet PDF 858 KB
User Guides & Manuals
ISL91107IRx-EVZ User Guide Manual PDF 592 KB