ISL91127IRNZ-T7A

Voltage Regulators - DC DC Switching Regulators Overview

The ISL91127IRNZ-T7A is a high-efficiency buck-boost switching regulator manufactured by Renesas Electronics Corporation. It operates with an input voltage range of 1.8V to 5.5V and provides a fixed output voltage of 3.3V. The device delivers up to 2A of continuous output current and features a synchronous rectifier architecture. It utilizes a 2.5MHz switching frequency and maintains a low quiescent current of 30µA. The component is housed in a compact 20-VFQFN package with an exposed pad, suitable for surface mount installation.

Voltage Regulators - DC DC Switching Regulators Feature Summary

• Supports automatic seamless transition between buck and boost modes
• Maintains regulation with very low output ripple near the output voltage
• Optimizes efficiency across all load conditions via low static current

Voltage Regulators - DC DC Switching Regulators Applications

• Handheld and battery-powered consumer devices
• Battery-powered medical equipment
• Smartphone and tablet systems requiring no-dropout voltage regulation
• Wireless communication equipment

Voltage Regulators - DC DC Switching Regulators Procurement Notes

Verify the specific suffix T7A corresponds to the tape and reel packaging configuration required for your assembly line. Confirm that the 20-QFN package dimensions align with your PCB footprint design. Ensure compatibility with the 3.3V fixed output specification for your target circuit application.

Voltage Regulators - DC DC Switching Regulators Selection Notes

Select this component when a single-cell lithium-ion battery system requires stable regulation despite input voltage fluctuations above or below the desired output level. It is appropriate for designs prioritizing high efficiency and minimal external component size due to the high switching frequency.

Voltage Regulators - DC DC Switching Regulators Part Context

This part belongs to the ISL91127 series of high-current buck-boost regulators. It shares core topology and algorithmic features with other variants in the family but differs in package type and specific output configurations. The IRNZ variant specifically denotes the QFN package option within this product line.

Voltage Regulators - DC DC Switching Regulators Replacement Considerations

ISL91127IRAZ-T: Offers similar functionality but utilizes a different QFN-20 package variant. ISL91127IINZ-T7A: Provides identical electrical performance but is packaged in a WLCSP format instead of QFN.