The ISL91107IRN-EVZ platform allows for a quick evaluation of the high-performance features of the ISL91107IR buck-boost regulator. The ISL91107IRN-EVZ is used to evaluate the ISL91107IRTNZ featuring 3.3 Vout.

The ISL91107IR is a high-current buck-boost switching regulator for systems using new battery chemistries in a 3x4 20 Ld TQFN package. 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


Type Title Date
Manual - Development Tools PDF 592 KB
Datasheet PDF 858 KB
2 items

Design & Development

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