ISL91110IR2AZ-T7A

Voltage Regulators - DC DC Switching Regulators Overview

The ISL91110IR2AZ-T7A is a high-efficiency buck-boost switching regulator featuring integrated 5.4A switches, designed for systems utilizing new battery chemistries. It operates with an input voltage range of 1.8V to 5.5V and provides a fixed 3.5V output. The device utilizes a 20-VFQFN exposed pad package (20-QFN) and supports surface mount installation. It functions at a switching frequency of 2.5MHz and maintains operation within a temperature range of -40°C to +85°C.

Voltage Regulators - DC DC Switching Regulators Feature Summary

• Integrates high-current 5.4A switches for efficient power conversion
• Supports buck-boost topology for flexible input voltage ranges
• Fixed 3.5V output configuration for specific system requirements

Voltage Regulators - DC DC Switching Regulators Applications

• Systems using new battery chemistries
• Portable electronic devices requiring stable voltage regulation
• Battery-powered equipment with varying input levels

Voltage Regulators - DC DC Switching Regulators Procurement Notes

Verify component authenticity through authorized Renesas distributors or certified suppliers. Confirm the part number matches the 20-QFN package variant. Check for obsolescence status as this model may be scheduled for discontinuation. Ensure storage conditions comply with moisture sensitivity levels for QFN packages. Validate datasheet revisions against current manufacturing specifications.

Voltage Regulators - DC DC Switching Regulators Selection Notes

Select this component when a fixed 3.5V output is required from a 1.8V to 5.5V input source. The 5.4A switch capability suits applications needing higher current than standard 2A regulators. The 20-QFN package offers a compact footprint for space-constrained designs. Consider the fixed output constraint versus adjustable variants if voltage flexibility is needed.

Voltage Regulators - DC DC Switching Regulators Part Context

The ISL91110 series includes variants like ISL91110IIAZ-T7A which feature adjustable outputs and different packaging. This IR2 suffix denotes the fixed 3.5V output version in a 20-pin QFN package, distinct from the WLCSP versions found in other series members. It belongs to Renesas's portfolio of high-efficiency DC-DC converters.

Voltage Regulators - DC DC Switching Regulators Replacement Considerations

Check for direct pin-compatible substitutes within the ISL91110 family. Verify if adjustable output variants meet the 3.5V requirement via resistor dividers. Confirm package dimensions match the 20-QFN form factor. Review thermal performance differences between potential replacements.