FTM Board Club
Evaluation Board for High Efficiency Buck-Boost Regulators with 4.5A Switches

The ISL91127IR 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 ISL91127IRN-EVZ platform allow quick evaluation of the high performance features of the ISL91127IR buck-boost regulator series.

  • Small, compact design
  • Jumper selectable EN (enabled/disabled)
  • Jumper selectable MODE (auto-PFM/forced-PWM)
  • Connectors, test points and jumpers for easy probing
  • Fixed 3.3V output voltage on the ISL91127IRN-EVZ