TLV431CDBVR

Overview

The TLV431CDBVR is a low-voltage adjustable precision shunt regulator manufactured by Texas Instruments. It operates within an input voltage range of 2.5 V to 7 V and provides an adjustable output voltage from 1.24 V to 6 V. The device features an initial accuracy of 1% and a temperature coefficient of 138 ppm/°C. It supports a maximum cathode current of 15 mA with a minimum operating current of 100 µA. The component functions across a temperature range of -40°C to +125°C and is housed in a compact SOT-23-5 surface-mount package.

Feature Summary

• Provides precise voltage regulation through an adjustable shunt reference architecture suitable for low-voltage applications.
• Ensures stable performance over wide thermal conditions with specified initial accuracy and temperature coefficient parameters.
• Integrates into compact surface-mount designs via the standard five-pin SOT-23 package configuration.

Applications

• Precision voltage reference sources in portable electronic devices
• Programmable power supply output regulation circuits
• Battery-powered equipment requiring accurate voltage monitoring

Procurement Notes

Verify that the specific ordering suffix matches the required tolerance grade and packaging format, as variations exist within the family. Confirm RoHS compliance status and ensure the supplier source aligns with original manufacturer distribution channels to guarantee authenticity. Cross-reference the full part number against official datasheets to validate electrical specifications before integration.

Selection Notes

Select this component when designing circuits requiring low-voltage operation between 2.5 V and 7 V. It is appropriate for applications demanding high initial accuracy without the need for external trimming. Consider the 15 mA current limit and 138 ppm/°C drift when evaluating thermal stability requirements for the target environment.

Part Context

This device belongs to the TLV431 series of adjustable shunt regulators, designed specifically for low-voltage environments compared to higher-voltage counterparts. It serves as a cost-effective alternative to Zener diodes, offering superior accuracy and lower dynamic impedance. The SOT-23-5 form factor allows for efficient PCB space utilization in modern consumer electronics.

Replacement Considerations

TLV431ACDBVR offers identical pinout and functionality with a relaxed 1% initial accuracy specification. TLV431BQDBVR provides enhanced automotive-grade reliability and tighter 0.5% accuracy metrics while maintaining the same physical package and operational voltage ranges.