ISL91110IIAZ-T7A

Voltage Regulators - DC DC Switching Regulators Overview

The ISL9110IIAZ-T7A is a high-efficiency synchronous buck-boost switching regulator manufactured by Renesas Electronics. It operates with an input voltage range of 1.8 V to 5.5 V and provides an adjustable output voltage from 1 V to 5.2 V. The device supports up to 2 A of continuous output current and integrates internal switches rated for 4 A. It functions at a fixed switching frequency of 2.5 MHz and maintains a typical quiescent current of 35 uA. The component is housed in a WLCSP-25 package and is designed for operation within a temperature range of -40°C to +85°C.

Voltage Regulators - DC DC Switching Regulators Feature Summary

• Synchronous buck-boost topology supporting both step-down and step-up conversion modes
• Integrated 4 A internal power switches for high efficiency
• Adjustable output voltage capability across a wide range
• Low standby current consumption for battery-powered applications

Voltage Regulators - DC DC Switching Regulators Applications

• Portable electronic devices requiring stable power from varying battery levels
• Single-cell lithium-ion battery powered systems
• USB-powered peripheral circuits
• Industrial control modules operating on variable supply rails

Voltage Regulators - DC DC Switching Regulators Procurement Notes

Verify the specific suffix T7A indicates the reel packaging format when ordering. Confirm the II designation matches the required temperature grade and pin configuration for your PCB layout. Ensure compatibility with the WLCSP-25 footprint during assembly planning. Cross-reference the manufacturer part number against official Renesas documentation to avoid counterfeit components.

Voltage Regulators - DC DC Switching Regulators Selection Notes

Select this component when input voltages may fluctuate above or below the required output level. The integrated switch rating allows handling transient loads without external MOSFETs. Consider the small WLCSP package size for space-constrained designs. Verify that the 2.5 MHz switching frequency aligns with EMI requirements and inductor selection constraints.

Voltage Regulators - DC DC Switching Regulators Part Context

This part belongs to the ISL91110 series of power management ICs from Renesas. It is distinct from other variants like the ISL91107 or ISL9112 which may differ in switching frequency, package type, or current capabilities. The evaluation board ISL91110IIA-EVZ is available for testing this specific regulator configuration.

Voltage Regulators - DC DC Switching Regulators Replacement Considerations

Publicly confirmed substitute part numbers are not provided in the source material. Consult Renesas technical support for direct replacements or verify if other members of the ISL911xx family meet the specific electrical and thermal requirements.