ISL91107IIJZ-TR5654

Voltage Regulators - DC DC Switching Regulators Overview

The ISL91107IIJZ-TR5654 is a highly integrated buck-boost switching regulator from Renesas Electronics. It supports an input voltage range of 1.8V to 5.5V and delivers up to 2A output current. The device operates at a fixed switching frequency of 2.5MHz. It features synchronous rectification for high efficiency across load conditions. The component is housed in a compact 15-pin WLCSP package with dimensions of 1.41mm x 1.41mm. It includes internal compensation and protection functions such as over-current and thermal shutdown.

Voltage Regulators - DC DC Switching Regulators Feature Summary

• Buck-boost topology accepts input voltages above or below the regulated output level
• Synchronous rectification ensures high efficiency across wide load ranges
• Integrated control loop eliminates external compensation components
• Compact footprint suitable for space-constrained portable designs

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 applications with variable input sources
• IoT sensors and wearables with tight space requirements

Voltage Regulators - DC DC Switching Regulators Procurement Notes

Verify the specific suffix TR5654 indicates tape and reel packaging configuration. Confirm RoHS compliance status through official Renesas documentation. Check for end-of-life notices as older Intersil variants may have different availability. Ensure ESD handling procedures are followed during assembly due to the WLCSP package type.

Voltage Regulators - DC DC Switching Regulators Selection Notes

Select this part when input voltage fluctuates around the required output voltage. The 2.5MHz frequency allows for smaller passive components compared to lower frequency alternatives. Verify that the 2A current rating meets peak load requirements. Consider the WLCSP package size constraints against PCB layout capabilities.

Voltage Regulators - DC DC Switching Regulators Part Context

This component belongs to the ISL91107 family of high-efficiency buck-boost regulators. It replaces earlier discrete solutions by integrating power switches and control logic. The device maintains regulation regardless of whether the input is higher or lower than the output. It is designed for applications where battery discharge curves create significant input voltage variations.

Voltage Regulators - DC DC Switching Regulators Replacement Considerations

ISL91107IIAZ-T7A is a documented variant within the same family offering similar functionality in a WLCSP package. Verify pin compatibility and electrical specifications before substitution. Ensure the replacement part supports the required 2A output current and 2.5MHz switching frequency.