IRU431-L5TR

Overview

The IRU431-L5TR is an adjustable shunt voltage reference IC manufactured by Infineon Technologies. It provides a stable output voltage ranging from 1.24V to 15V with a tolerance of ±1%. The device supports a maximum cathode current of 80 µA and can handle up to 10 mA output current. It operates within a supply voltage range up to 15 V and is housed in a compact SOT-23-5 package.

Feature Summary

• Adjustable output voltage capability spanning from 1.24V to 15V
• High precision with ±1% initial accuracy tolerance
• Compact surface-mount SOT-23-5 packaging for space-constrained designs

Applications

• Portable battery-powered equipment requiring precise voltage regulation
• Data acquisition systems needing stable reference voltages
• Microcontroller power supply monitoring circuits

Procurement Notes

Verify the specific suffix L5TR corresponds to the SOT-23-5 package variant when ordering. Confirm RoHS compliance status if required for your manufacturing process. Ensure the supplier provides genuine Infineon components to guarantee specified electrical performance and reliability standards are met.

Selection Notes

Select this component when a low-cost, high-accuracy shunt reference is needed in a small footprint. The adjustable nature allows flexibility in setting reference levels compared to fixed voltage references. Consider the 10 mA load capability against your circuit's current requirements before finalizing the design choice.

Part Context

This part belongs to the IRU431 series of shunt voltage references. The series offers various package options and tolerances. The L5TR designation specifically identifies the SOT-23-5 package version with standard trimming, distinguishing it from other variants like the L3TR which may have different pinout or package constraints.

Replacement Considerations

Direct substitutes include other IRU431 series variants such as IRU431-L3TR if package compatibility allows. Generic LM431 equivalents may function electrically but differ in package and specific thermal characteristics. Verify pinout compatibility before swapping.