TLVH431CDBVR

Overview

The TLVH431CDBVR is a low-voltage adjustable precision shunt voltage reference manufactured by Texas Instruments. It operates within an output voltage range of 1.24 V to 18 V and features an initial accuracy of ±1.5%. The device supports a maximum sink current of 70 mA and withstands a maximum series voltage of 18 V. It functions reliably across a temperature range of 0°C to 70°C. Packaged in a compact SOT-23-5 surface-mount format, it integrates three-terminal regulation for stable voltage referencing.

Feature Summary

• Adjustable output voltage capability via external resistor divider
• Precision shunt regulation with guaranteed temperature stability
• Low operating current suitable for power-constrained designs
• Compact surface-mount package for space-saving integration

Applications

• Battery-operated equipment requiring precise voltage monitoring
• Switch-mode power supplies utilizing feedback control loops
• Data acquisition systems needing stable reference voltages
• Portable devices where low quiescent current is critical

Procurement Notes

Verify the specific suffix 'C' denotes the ±1.5% accuracy grade and 'DBVR' indicates the SOT-23-5 tape-and-reel packaging configuration. Confirm that the commercial temperature range (0°C to 70°C) aligns with your system requirements, as automotive or extended industrial variants exist within the broader family. Ensure compatibility with your PCB footprint for the SC-74A/SOT-753 outline.

Selection Notes

Select this component when a low-cost, adjustable shunt reference is required for non-critical precision applications. The ±1.5% tolerance makes it suitable for general-purpose regulation rather than high-accuracy instrumentation. Consider alternative grades if tighter initial accuracy or wider temperature ranges are necessary for your specific design constraints.

Part Context

This part belongs to the TLVH431 series of low-voltage adjustable shunt regulators. It serves as a modern alternative to traditional TL431 devices, offering improved performance at lower supply voltages. The series includes various accuracy grades and package options to support diverse embedded power management needs.

Replacement Considerations

Direct substitutes include other TLVH431 variants with different accuracy grades or packages, such as TLVH431AIL5T or TLVH431BIL5T from STMicroelectronics, provided pinout and electrical characteristics match. Verify thermal performance and dynamic impedance specifications when cross-referencing.