TL1431CCT

Overview

The TL1431CCT is a programmable shunt voltage reference manufactured by STMicroelectronics. It operates within a supply voltage range of 2.5 V to 36 V and utilizes an SOT-323 surface-mount package with six pins. The device features an initial precision accuracy of ±2.0% and supports a maximum cathode current of 100 mA. It is designed for surface mount installation and functions within an operating temperature range of 0°C to +70°C.

Feature Summary

• Provides adjustable output voltage capability between 2.5 V and 36 V using external resistors
• Offers high stability with guaranteed temperature performance across the operating range
• Supports wide dynamic current operation from 1 mA to 100 mA

Applications

• General-purpose voltage regulation circuits
• Portable equipment power management
• Battery-powered system references

Procurement Notes

Verify the specific suffix CCT against official STMicroelectronics documentation to confirm pinout, tolerance, and packaging details. Ensure the selected variant matches the required thermal and electrical specifications for the target application environment before finalizing procurement.

Selection Notes

Select this component when a compact, low-cost programmable reference is needed for standard industrial or consumer applications. The SOT-323 package suits space-constrained designs, while the ±2.0% accuracy meets general requirements where ultra-high precision is not critical.

Part Context

This part belongs to the TL1431 family of adjustable shunt voltage references. These devices are widely used as replacement components for Zener diodes in various linear and switching power supply topologies, offering superior temperature stability and lower dynamic impedance compared to traditional solutions.