TLV431BIDBVR

Overview

The TLV431BIDBVR is a low-voltage adjustable precision shunt regulator manufactured by Texas Instruments. It provides an initial accuracy of 0.5% and operates within a temperature range of -40°C to +85°C. The device features an adjustable output voltage ranging from 1.24 V to 6 V, with a maximum cathode current of 15 mA and a minimum operating current of 80 µA. It utilizes a SOT-23-5 surface-mount package.

Feature Summary

• Provides high-precision voltage regulation with 0.5% initial accuracy for stable reference applications.
• Supports wide input voltage ranges up to 7 V, enabling flexibility in various circuit topologies.
• Operates efficiently with a low minimum cathode current requirement of 80 µA.

Applications

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

Procurement Notes

Verify the specific suffix IDBVR confirms the SOT-23-5 package and tape-and-reel delivery format. Ensure the design requires the standard commercial temperature grade (-40°C to +85°C) rather than extended industrial ratings. Confirm RoHS compliance status matches project environmental requirements before finalizing procurement orders.

Selection Notes

Select this component when 0.5% accuracy is mandatory for the reference node. Compare against TLV431A variants if higher accuracy is unnecessary to optimize cost. Consider the TLVH431 series if extended temperature operation or wider voltage ranges are required for the specific application environment.

Part Context

This part belongs to the TLV431 family of three-terminal adjustable shunt regulators. It serves as a drop-in replacement for legacy Zener diodes in many linear regulator feedback loops. The device integrates a bandgap reference and error amplifier to maintain precise output control under varying load conditions.

Replacement Considerations

Direct equivalents include the TLV431BIDBVTG4. Verify pinout compatibility and thermal characteristics when substituting with generic shunt regulators from other manufacturers.

FAQ

What is the minimum cathode current required for proper regulation?

The device requires a minimum cathode current of 80 µA to maintain regulation within specified accuracy limits.

Does the output voltage remain adjustable across the entire operating temperature range?

Yes, the output voltage remains adjustable from 1.24 V to 6 V throughout the specified -40°C to +85°C operating range.