TLV431ACDBVT

Overview

The TLV431ACDBVT is a low-voltage adjustable precision shunt regulator manufactured by Texas Instruments. It operates within an input voltage range of up 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 maximum temperature coefficient of 138 ppm/°C. It supports a maximum cathode current of 15 mA and functions reliably across a temperature range of -40°C to +125°C. Packaged in a compact SOT-23-5 surface-mount format, it serves as a high-performance reference for space-constrained designs.

Feature Summary

• Adjustable output voltage capability spanning from 1.24 V to 6 V
• High initial accuracy with a tolerance of ±1%
• Low minimum cathode current requirement of 80 µA
• Wide operating temperature range suitable for industrial applications

Applications

• Portable battery-powered equipment requiring precise voltage references
• DC-to-DC converter feedback loops for regulation
• Comparator circuits utilizing stable reference voltages
• Power supply monitoring systems

Procurement Notes

Verify the specific suffix 'VT' corresponds to the tape-and-reel packaging configuration required for automated assembly processes. Confirm that the 138 ppm/°C temperature coefficient meets the thermal stability requirements of the target application environment. Ensure the 7 V maximum series voltage rating aligns with the system's supply rails to prevent device overstress during operation.

Selection Notes

Select this component when a low-voltage, high-precision reference is needed in a small footprint. It is suitable for replacing standard TL431 devices in low-voltage systems where the higher 36 V rating is unnecessary. Consider the 15 mA current limit for load driving capabilities. The wide temperature range makes it appropriate for harsh environments compared to commercial-grade alternatives.

Part Context

This part belongs to the TLV431 family of low-voltage adjustable shunt regulators. It offers improved performance over traditional TL431 devices in terms of lower voltage operation and reduced minimum cathode current. The SOT-23-5 package allows for significant board space savings, making it ideal for modern compact electronic designs requiring reliable voltage referencing.

Replacement Considerations

Direct substitutes include the TLV431ACDBVR and TLV431ACDBVTG4. Verify pinout compatibility and electrical specifications before substitution. Other compatible parts within the same family may offer different packaging or accuracy grades.