TLVH431BCDBZT

Overview

The TLVH431BCDBZT is a low-voltage adjustable precision shunt regulator manufactured by Texas Instruments. It provides an output voltage range from 1.24 V to 18 V with an initial accuracy of 0.5%. The device operates within a temperature range of -40°C to +125°C and features a maximum temperature coefficient of 138 PPM/°C. It supports a maximum cathode current of 80 mA and requires a minimum operating current of 80 µA. The component is housed in a SOT-23-5 surface-mount package and accepts a maximum series reference input voltage of 20 V.

Feature Summary

• Adjustable output voltage capability spanning from 1.24 V up to 18 V via external resistor dividers
• High precision performance characterized by 0.5% initial accuracy and stable operation across wide temperature ranges
• Wide operating current range allowing efficient power management in space-constrained designs

Applications

• Battery-operated equipment requiring precise voltage monitoring
• Switch-mode power supplies utilizing feedback regulation
• Data acquisition systems needing stable reference voltages

Procurement Notes

Verify the specific suffix 'B' indicates the 0.5% accuracy grade and 'ZT' denotes the SOT-23-5 package configuration. Confirm RoHS compliance status through official documentation. Check for end-of-life notifications or discontinuance alerts as availability may be restricted. Ensure the ordering part number matches the required pinout and thermal specifications for the target application.

Selection Notes

Select this component when a compact surface-mount solution is required for low-voltage precision regulation. The SOT-23-5 package offers space savings compared to larger alternatives. Choose based on the need for 0.5% accuracy over a wide industrial temperature range. Consider the 80 mA sink current capability for driving load requirements without additional buffering components.

Part Context

This device belongs to the TLVH431B family of low-voltage adjustable shunt regulators. It serves as a high-precision alternative to standard zener diodes, offering better temperature stability and lower dynamic impedance. The component is categorized under PMIC voltage references and is designed for applications demanding reliable performance in power management circuits.

Replacement Considerations

Compatible substitutes include other TLVH431 variants with matching accuracy grades and packages, such as TLVH431BCDBVTG4. Verify pin compatibility and electrical parameters before substitution. Cross-reference datasheets to ensure equivalent thermal and current handling capabilities.