ISL9112IRTNZ-T7A

Voltage Regulators - DC DC Switching Regulators Overview

The ISL9112IRTNZ-T7A is a synchronous buck-boost switching regulator manufactured by Renesas Electronics Corporation. It operates within an input voltage range of 1.8 V to 5.5 V and provides a fixed output voltage of 3.3 V. The device supports a maximum output current of 1.2 A with a switching frequency of 2.5 MHz. Quiescent current is specified at 35 uA. It functions in the temperature range of -40°C to +85°C and utilizes a 12-WFQFN (3x3) package with an exposed pad.

Voltage Regulators - DC DC Switching Regulators Feature Summary

• Synchronous buck-boost topology enables efficient power conversion across varying battery states
• Fixed 3.3 V output simplifies design for standard logic supply requirements
• Compact 12-pin TDFN footprint minimizes board space consumption

Voltage Regulators - DC DC Switching Regulators Applications

• Portable consumer electronics requiring stable 3.3 V rails
• Battery-powered IoT sensor nodes
• Wearable devices with fluctuating input voltages

Voltage Regulators - DC DC Switching Regulators Procurement Notes

Verify the specific suffix 'NZ' indicates RoHS compliance and lead-free status as per manufacturer documentation. Confirm the 'T7A' suffix corresponds to the correct tape and reel packaging configuration for automated assembly processes. Cross-reference the datasheet revision date to ensure compatibility with current design specifications.

Voltage Regulators - DC DC Switching Regulators Selection Notes

Select this component when a fixed 3.3 V output is required from a single-cell lithium or alkaline battery source. The 1.2 A current rating suits moderate load applications. Consider the 2.5 MHz frequency for balancing component size against efficiency. Ensure the thermal performance of the 12-WFQFN package meets the system's heat dissipation needs under maximum load conditions.

Voltage Regulators - DC DC Switching Regulators Part Context

This part belongs to the ISL9112 series of flexible buck-boost regulators. It shares architectural similarities with other variants like the ISL9112IRT7Z-T7A, which offers a fixed 5 V output. The series targets portable applications needing wide input voltage tolerance and high efficiency across light and heavy loads.

Voltage Regulators - DC DC Switching Regulators Replacement Considerations

ISL9112IRT7Z-T7A provides a similar 1.2 A buck-boost solution but features a fixed 5 V output instead of 3.3 V. Verify output voltage compatibility before substitution. Other series members may offer different current ratings or adjustable outputs.