ISL9110IRTAZ-TR5453

Voltage Regulators - DC DC Switching Regulators Overview

The ISL9110IRTAZ-TR5453 is a high-efficiency buck-boost switching voltage regulator manufactured by Renesas Electronics Corporation. It provides a maximum continuous output current of 1.2A with an adjustable output voltage range from 1V to 5.2V. The device operates at a fixed switching frequency of 2.5MHz and features a load regulation of 0.4mV/mA. Designed for surface-mount applications, it utilizes a TDFN-EP-12 package and functions within a temperature range of -40°C to +85°C.

Voltage Regulators - DC DC Switching Regulators Feature Summary

• Buck-Boost topology supporting input voltages below, equal to, or above the regulated output
• Integrated power switches delivering up to 1.2A continuous output current
• Fixed 2.5MHz switching frequency enabling compact external component sizing

Voltage Regulators - DC DC Switching Regulators Applications

• Microcontroller power supply systems
• Battery-powered portable devices
• Single-cell lithium-ion battery charging circuits

Voltage Regulators - DC DC Switching Regulators Procurement Notes

Verify that the specific suffix TR5453 corresponds to the required reel packaging configuration as defined in the official Renesas documentation. Confirm that the ordering information matches the exact part number variant to ensure compatibility with automated assembly processes and standard manufacturing specifications.

Voltage Regulators - DC DC Switching Regulators Selection Notes

Select this component when a single-stage solution is required to handle varying input voltages relative to the system rail. The integrated design simplifies bill-of-materials compared to discrete implementations. Ensure the thermal performance of the TDFN-12 package aligns with the expected ambient operating conditions and PCB layout constraints.

Voltage Regulators - DC DC Switching Regulators Part Context

This regulator belongs to the ISL9110 series of high-efficiency DC-DC converters. The family includes variants such as the ISL9110IRTAZ and ISL9110IRTAZ-T, which share core electrical characteristics but differ in packaging formats like trays versus reels. The TR5453 designation indicates a specific tape-and-reel configuration intended for high-volume surface-mount production lines.

Voltage Regulators - DC DC Switching Regulators Replacement Considerations

Direct substitutes include the ISL9110IRTAZ and ISL9110IRTAZ-T. Verify pinout compatibility and thermal pad requirements before substitution. Cross-reference datasheet revisions to ensure functional equivalence regarding switching frequency and current limits.