TLV431BCDBZT

Overview

The TLV431BCDBZT is a low-voltage adjustable precision shunt regulator manufactured by Texas Instruments. It operates within an input voltage range of 2.5 V to 36 V and provides an adjustable output voltage from 1.24 V to 36 V. The device features an initial accuracy of 0.5% and a maximum temperature coefficient of 92 ppm/°C. It supports a maximum cathode current of 100 mA with a minimum operating current of 600 µA. The component functions across a temperature range of -40°C to +125°C and is housed in a surface-mount SOT-23 package.

Feature Summary

• Provides precise voltage regulation with 0.5% initial accuracy for stable reference applications
• Supports wide input voltage ranges up to 36 V for versatile power management integration
• Operates reliably across extended industrial temperature environments

Applications

• Precision voltage references in battery-powered equipment
• Programmable output regulators in switching power supplies
• Comparator circuits requiring accurate threshold detection

Procurement Notes

Verify the specific suffix designation against official manufacturer documentation to confirm pinout compatibility and thermal characteristics. Ensure that the sourcing channel provides valid traceability records for quality assurance. Confirm RoHS compliance status through current datasheets as manufacturing processes may evolve over time. Cross-reference the part number with authorized distributors to avoid counterfeit components.

Selection Notes

Select this component when high accuracy is required in low-voltage environments. Compare the 100 mA cathode current capability against load requirements to ensure adequate headroom. Evaluate the SOT-23 package constraints regarding thermal dissipation and board space limitations relative to alternative packages like TO-92 or TSSOP.

Part Context

This device belongs to the TL431 family of programmable shunt regulators, widely utilized as a cost-effective alternative to Zener diodes. The TLV431 variant specifically targets low-voltage applications while maintaining the robust performance characteristics of the original series. It serves as a fundamental building block for feedback loops in DC-DC converters and linear regulators.

Replacement Considerations

Direct substitutes include TLV431ACDBZT and TLV431IDBZT for varying accuracy grades. Standard TL431 variants offer similar functionality but may differ in low-voltage startup performance.