ISL91110IINZ-T

Voltage Regulators - DC DC Switching Regulators Overview

The ISL91110IINZ-T is a high-efficiency Buck-Boost switching voltage regulator manufactured by Renesas Electronics Corporation. It features integrated 4A power switches and operates within an input voltage range of 1.8 V to 5.5 V. The device provides a fixed 3.3 V output with a maximum output current of 2 A. It utilizes a 2.5 MHz switching frequency and includes a shutdown function for power management. The component is housed in a WLCSP-25 package, supports surface mount installation, and functions reliably across an operating temperature range of -40°C to +85°C.

Voltage Regulators - DC DC Switching Regulators Feature Summary

• Supports Buck-Boost topology for flexible input-to-output voltage conversion
• Integrates high-current 4A internal power switches
• Includes shutdown capability for enhanced power efficiency

Voltage Regulators - DC DC Switching Regulators Applications

• Battery-powered portable electronic devices
• Single-cell lithium-ion battery systems
• Industrial control modules requiring stable 3.3V rails

Voltage Regulators - DC DC Switching Regulators Procurement Notes

Verify the specific suffix 'T' indicates reel packaging when ordering. Confirm that the WLCSP-25 package requires appropriate reflow soldering profiles. Ensure the application circuit supports the 1.8 V to 5.5 V input range. Check RoHS compliance documentation for final assembly requirements. Validate that the 2 A output current meets system load demands under all thermal conditions.

Voltage Regulators - DC DC Switching Regulators Selection Notes

Select this component when a single-cell battery input must support both buck and boost operations. The 4A switch rating allows for robust transient handling. The WLCSP-25 package offers space savings compared to larger footprints. Consider the 2.5 MHz frequency for passive component size reduction. Verify thermal performance at maximum load currents.

Voltage Regulators - DC DC Switching Regulators Part Context

This part belongs to the ISL91110 series of high-efficiency DC-DC converters. It is designed for applications requiring wide input voltage ranges from a single cell. The series targets mobile and industrial markets needing compact power solutions. Related parts may include variants with different output voltages or packages.

Voltage Regulators - DC DC Switching Regulators Replacement Considerations

ISL91110IIA-EVZ is an evaluation board for the ISL91110 family, not a direct substitute.