ISL78234AARZ-T

Voltage Regulators - DC DC Switching Regulators Overview

The ISL78234AARZ-T is an automotive-grade, monolithic synchronous buck regulator from the Renesas ISL78234 series. It delivers a continuous output current of 4 A with an input voltage range of 2.7 V to 5.5 V. The device operates at a fixed switching frequency of 2 MHz and supports a single output configuration. It functions within an ambient temperature range of -40°C to +125°C and utilizes a TQFN-EP-16 surface-mount package.

Voltage Regulators - DC DC Switching Regulators Feature Summary

• Automotive Grade AEC-Q100 qualification for high reliability in vehicle environments
• Integrated synchronous rectification for high efficiency and compact design
• Fixed 2 MHz switching frequency enabling reduced passive component size
• Wide operating junction temperature range suitable for harsh thermal conditions

Voltage Regulators - DC DC Switching Regulators Applications

• Automotive infotainment systems
• Body control modules (BCM)
• Telematics units
• Sensor power distribution networks

Voltage Regulators - DC DC Switching Regulators Procurement Notes

Verify the specific suffix 'T' indicates tape-and-reel packaging when ordering. Confirm the 'AA' variant designation against the official datasheet to ensure correct electrical tolerances or marking codes. Check RoHS compliance status via manufacturer documentation prior to integration into regulated assemblies.

Voltage Regulators - DC DC Switching Regulators Selection Notes

Select this component for applications requiring a 4 A synchronous buck solution in automotive environments. Ensure the input supply remains within the 2.7 V to 5.5 V window. The 2 MHz frequency allows for smaller inductors compared to lower-frequency alternatives. Verify thermal management requirements for the TQFN-EP-16 package under maximum load conditions.

Voltage Regulators - DC DC Switching Regulators Part Context

This part belongs to the ISL78234 family of highly efficient, monolithic synchronous buck regulators designed by Renesas Electronics. The family targets automotive power management needs, offering integrated protection features and robust performance in space-constrained designs typical of modern vehicle electronic architectures.

Voltage Regulators - DC DC Switching Regulators Replacement Considerations

Consult the official Renesas replacement guide for direct pin-compatible substitutes. Cross-reference with other ISL782xx series variants if current ratings or input voltage ranges differ from system requirements.