TLV431IDBVRG4

Overview

The TLV431IDBVRG4 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 range from 1.24V to 6V, with a maximum reference input voltage of 7V. It supports a maximum shunt current of 15mA and a minimum cathode current of 80µA. Packaged in a compact SOT-23-5 surface-mount format, it serves as a high-performance voltage reference.

Feature Summary

• Provides precise voltage regulation with 0.5% initial accuracy for stable reference applications
• Features an adjustable output voltage range spanning from 1.24V to 6V
• Operates reliably across an extended industrial temperature range of -40°C to +85°C

Applications

• Precision voltage references in battery-powered equipment
• Voltage regulation in portable consumer electronics
• Reference sources for analog-to-digital converters (ADCs)
• Power supply feedback loops requiring low-voltage stability

Procurement Notes

Verify the specific suffix 'G4' indicates lead-free compliance and RoHS standards during procurement. Confirm the package designation matches the required SOT-23-5 footprint for PCB layout compatibility. Ensure the operating environment remains within the specified -40°C to +85°C range to maintain the guaranteed 0.5% accuracy specification. Cross-reference the datasheet for thermal dissipation requirements under maximum load conditions.

Selection Notes

Select this component when a low-voltage, high-accuracy reference is required in space-constrained designs. The SOT-23-5 package offers a small form factor suitable for dense layouts. Consider the 0.5% initial accuracy if tighter tolerance than standard TLV431 variants is necessary. Evaluate the 15mA maximum shunt current capability against the circuit's load requirements to ensure adequate drive strength without exceeding limits.

Part Context

This part belongs to the TLV431 family of adjustable precision shunt regulators designed for low-voltage applications. It serves as a drop-in replacement for traditional Zener diodes in many reference circuits. The 'I' suffix denotes the 0.5% accuracy grade, distinguishing it from lower-accuracy variants. The 'G4' suffix typically signifies environmental compliance and manufacturing origin details defined by Texas Instruments.

Replacement Considerations

Direct substitutes include other TLV431 variants with matching accuracy grades and packages, such as TLV431AIDBVRG4. Verify pinout compatibility and electrical specifications before substitution. Alternative manufacturers may offer functionally equivalent parts, but parameter verification is essential.