TLV431BCDBVT

Overview

The TLV431BCDBVT 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 with a minimum operating current of 100 µA. The component functions reliably across a temperature range of -40°C to +125°C and is housed in a compact SOT-23-5 surface-mount package.

Feature Summary

• Provides precise voltage regulation with 1% initial accuracy for stable reference applications
• Operates at low voltages with a maximum input rating of 7 V
• Offers wide thermal stability suitable for demanding industrial environments

Applications

• Low-voltage power supply feedback loops
• Precision voltage references in portable electronics
• Battery-powered equipment requiring stable regulation

Procurement Notes

Verify the specific suffix 'VT' confirms the SOT-23-5 package and tape-and-reel orientation. Confirm that the 1% accuracy grade meets system requirements, as other grades like 'B' offer 0.5%. Ensure the 7 V maximum input voltage aligns with the circuit design, distinguishing it from higher voltage variants. Check RoHS compliance status for environmental regulations.

Selection Notes

Select this part when a low-voltage adjustable reference is required with moderate accuracy. The 15 mA cathode current capability suits light-load applications. Compare against the TLV431B series if tighter 0.5% accuracy is needed. Consider the SOT-23-5 footprint constraints versus standard three-terminal packages. Verify the 138 ppm/°C temperature coefficient fits the thermal budget.

Part Context

This component belongs to the TLV431 family of low-voltage adjustable shunt regulators. It serves as a modern alternative to traditional high-voltage references in space-constrained designs. The device integrates a bandgap reference and error amplifier into a small form factor. It is widely used in consumer electronics where board space and low operating voltage are critical design parameters.

Replacement Considerations

The TLV431BCDBVTE4 is a verified equivalent offering identical electrical specifications and pinout compatibility.