ISL91127IRN-EVZ, ISL91127IRA-EVZ

Description

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 and ISL91127IRA-EVZ platforms allow quick evaluation of the high performance features of the ISL91127IR buck-boost regulator series.

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
• Resistor programmable output voltage on the ISL91127IRA-EVZ
• Fixed 3.3V output voltage on the ISL91127IRN-EVZ

Applications

• Handheld and battery powered consumer and medical devices
• Brownout free system voltage for smartphones and tablet PCs
• Wireless communication devices
• 2G/3G/4G RF power amplifiers

ISL91127IRA-EVZ Buck-Boost Regulator Board Top

ISL91127IRA-EVZ Buck-Boost Regulator Board Bottom