ISL91107IRTAZ-T7A

Voltage Regulators - DC DC Switching Regulators Overview

The ISL91107IRTAZ-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 output current and features a fixed switching frequency of 2.5 MHz. It is housed in a TQFN-EP-20 surface-mount package, measuring 4 mm x 4 mm with a maximum height of 0.75 mm. The component exhibits a quiescent current of 60 uA during operation and 45 uA in standby mode, ensuring efficient power management across varying load conditions.

Voltage Regulators - DC DC Switching Regulators Feature Summary

• Synchronous buck-boost topology enables stable regulation for both step-up and step-down applications within the specified input range.
• Integrated shutdown pin allows for precise power management control, reducing quiescent current significantly when disabled.
• Compact TQFN-EP-20 package design facilitates space-constrained PCB layouts while maintaining thermal performance through an exposed pad.

Voltage Regulators - DC DC Switching Regulators Applications

• Portable battery-powered devices requiring efficient voltage conversion
• IoT sensors and modules with variable input sources
• Mobile communication equipment needing compact power solutions

Voltage Regulators - DC DC Switching Regulators Procurement Notes

Verify the specific suffix 'T7A' corresponds to the tape-and-reel packaging configuration required for automated assembly processes. Confirm that the TQFN-EP-20 package variant matches your PCB footprint and thermal relief requirements. Ensure compliance with RoHS3 standards if applicable to your manufacturing environment. Cross-reference the manufacturer part number with official Renesas documentation to validate availability and lead times before finalizing procurement plans.

Voltage Regulators - DC DC Switching Regulators Selection Notes

Select this component when an adjustable output voltage is necessary within a 1 V to 5.2 V range from a single-cell lithium-ion or similar power source. The 2.5 MHz switching frequency allows for smaller external passive components compared to lower-frequency alternatives. Consider the 2 A current capability against peak load demands, accounting for efficiency losses at higher loads. The exposed pad thermal design requires adequate copper area on the PCB for optimal heat dissipation.

Voltage Regulators - DC DC Switching Regulators Part Context

This part belongs to the ISL91107 series of high-efficiency buck-boost regulators from Renesas Electronics. The series is designed for applications requiring wide input voltage ranges and flexible output configurations. The IRTAZ suffix indicates the specific temperature grade and packaging type, distinguishing it from other variants like WLCSP packages found in related models such as the ISL91107IIAZ.

Voltage Regulators - DC DC Switching Regulators Replacement Considerations

The ISL91107IRA-EVZ is an evaluation board for this family, not a direct replacement. No direct public substitute part numbers are confirmed in the provided data. Verify compatibility with existing designs using the ISL91107 series datasheet specifications.