TL431CLPME3

Overview

The TL431CLPME3 is a programmable shunt voltage reference from Texas Instruments, operating within a 2.495V to 36V output range. It features an initial accuracy of ±2% and a maximum temperature coefficient of 92 ppm/°C. The device supports a cathode current up to 100mA with a minimum input voltage of 2.44V and maximum of 37V. Designed for through-hole mounting in a TO-92 package, it functions effectively across a commercial temperature range of 0°C to 70°C.

Feature Summary

• Provides precise adjustable voltage regulation via a three-terminal shunt topology
• Ensures stable performance with low temperature coefficient characteristics
• Supports high cathode current capacity for robust power management applications

Applications

• Precision voltage references in power supply circuits
• Programmable output regulators
• Voltage monitoring and threshold detection systems

Procurement Notes

Verify the specific suffix 'E3' indicates lead-free compliance and RoHS status as per manufacturer documentation. Confirm the package type matches the required TO-92 form factor for your PCB layout. Ensure the operating temperature range aligns with your system's commercial environment requirements. Cross-reference the datasheet for any recent product change notifications or lifecycle status updates before finalizing procurement.

Selection Notes

Select this component when a reliable, adjustable shunt regulator is needed for commercial-grade applications. The ±2% accuracy suits general-purpose precision tasks where tighter tolerances are unnecessary. Consider the TO-92 package constraints for space-limited designs requiring through-hole integration. Evaluate the 100mA current capability against load requirements to ensure adequate headroom for stable operation under varying conditions.

Part Context

This part belongs to the widely adopted TL431 family of programmable shunt regulators. It serves as a fundamental building block for analog circuit design, offering a cost-effective solution for voltage referencing. The device replaces older Zener diodes by providing superior stability and adjustability. Its industry-standard pinout facilitates easy integration into existing designs without significant schematic modifications.

Replacement Considerations

Direct substitutes include TL431CLPR and TL431CLP. Verify pin compatibility and electrical specifications match before substitution.