Evaluation Boards for High Efficiency Buck-Boost Regulators with 4.1A Switches


The ISL91107IR is a high-current buck-boost switching regulator for systems using new battery chemistries. It uses Intersil’s 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.

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

Key Features

  • 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

ISL91107IRA-EVZ for Adjustable Output

ISL91107IRA-EVZ for Adjustable Output

ISL91107IRN-EVZ for Fixed 3.3V Output

ISL91107IRN-EVZ for Fixed 3.3V Output


Related Products


Tool Information

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Disclaimer: THIS MATERIAL IS PROVIDED “AS-IS” FOR EVALUATION PURPOSES ONLY. RENESAS ELECTRONICS CORPORATION AND ITS SUBSIDIARIES (collectively, “Renesas”) DISCLAIM ALL WARRANTIES, INCLUDING WITHOUT LIMITATION, FITNESS FOR A PARTICULAR PURPOSE AND MERCHANTABILITY. Renesas provides evaluation platforms and design proposals to help our customers to develop products. However, factors beyond Renesas' control, including without limitation, component variations, temperature changes and PCB layout, could significantly affect the product performance. It is the user’s responsibility to verify the actual circuit performance.