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Renesas Electronics Corporation

Overview

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

The ISL91127IR is a high-current buck-boost switching regulator for systems using new battery chemistries in a 20-lead, 0.5mm pitch QFN (4mm x 4mm) 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.

Features

  • 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

Products in the Design

Sample & Buy

ISL91127IRN-EVZ Buck-Boost Regulator with 4.5A Switches and Fixed 3.3V Output Voltage Evaluation Board - Top

ISL91127IRN-EVZ

Active
Pb (Lead) Free:Yes
ECCN (US):EAR99
HTS (US):8473.30.1180

Add-on Hardware

Additional boards that work with this platform. Some may be required for full functionality or to evaluate specific features.

High-Efficiency Buck-Boost Regulator with 4.5A Switches and Resistor Programmable Output Voltage Evaluation Board (QFN)

Provides a platform to evaluate the ISL91127IR buck‑boost regulator. Supports efficient power conversion near dropout conditions.

High-Efficiency Buck-Boost Regulator with 4.5A Switches and Fixed 3.3V Output Voltage Evaluation Board (WLCSP)

Evaluate high‑current buck‑boost regulators in ultra‑compact packages. Designed to support efficient power conversion for modern battery chemistries.
Recommended Documents:

High-Efficiency Buck-Boost Regulator with 4.5A Switches and Resistor Programmable Output Voltage Evaluation Board (WLCSP)

Evaluates adjustable-output high-efficiency buck-boost regulation optimized for modern battery chemistries. Enables validation of efficiency, regulation, and performance near dropout conditions.
Recommended Documents:

High-Efficiency Buck-Boost Regulator with 4.5A Switches and Fixed 3.5V Output Voltage Evaluation Board (WLCSP)

Evaluate fixed‑output high‑current buck‑boost regulation for battery‑powered systems. Designed to simplify performance validation and efficiency testing.
Recommended Documents:

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