ISL91107IIAZ-TR5654

Voltage Regulators - DC DC Switching Regulators Overview

The ISL91107IIAZ-TR5654 is a high-efficiency synchronous buck-boost switching regulator manufactured by Renesas Electronics. It operates with an input voltage range of 1.8V to 5.5V and provides an adjustable output voltage up to 5.2V. The device delivers a continuous output current of 2A and integrates internal power switches rated for 2A. It features a fixed switching frequency of 2.75MHz, ensuring stable regulation across varying load conditions. The component is housed in a compact 15-pin WLCSP package with dimensions of 2.15mm x 2.15mm and a height of 0.3mm. It supports operation within a temperature range of -40°C to +85°C.

Voltage Regulators - DC DC Switching Regulators Feature Summary

• Synchronous buck-boost topology enables efficient power conversion across wide input-to-output voltage differentials.
• Integrated 2A power switches reduce external component count and simplify board layout.
• Fixed 2.75MHz switching frequency allows the use of small passive components for space-constrained designs.

Voltage Regulators - DC DC Switching Regulators Applications

• Portable battery-powered devices requiring stable voltage from single-cell lithium-ion sources
• Embedded systems with variable input supply ranges
• Industrial control modules needing regulated power from fluctuating bus voltages

Voltage Regulators - DC DC Switching Regulators Procurement Notes

Verify the exact suffix TR5654 against official Renesas documentation to confirm reel specifications and tape-and-reel parameters. Ensure compatibility with existing PCB footprint and soldering profiles for WLCSP packages. Cross-reference RoHS compliance status and lead-free requirements with current manufacturing notices. Confirm availability through authorized distributors to avoid counterfeit components.

Voltage Regulators - DC DC Switching Regulators Selection Notes

Select this regulator when input voltage may rise above or fall below the required output voltage. The 2A current rating suits moderate-load applications. The WLCSP package is ideal for dense layouts. Consider thermal performance under maximum load conditions. Verify that the 2.75MHz frequency does not interfere with sensitive RF circuits in the system.

Voltage Regulators - DC DC Switching Regulators Part Context

The ISL91107 belongs to Renesas' portfolio of high-efficiency DC-DC converters designed for portable electronics. It complements other regulators in the series offering different current ratings and packaging options. The device addresses the need for flexible power management in systems powered by single-cell batteries where voltage varies significantly during discharge cycles.

Voltage Regulators - DC DC Switching Regulators Replacement Considerations

ISL91107IINZ-T is a pin-compatible alternative in TQFN package. ISL91107IRTAZ offers similar electrical characteristics in TQFN-EP-20. Verify package dimensions and thermal pad requirements before substitution. Check if switching frequency and control interface match system design constraints.