TLV431BCDBVTG4

Overview

The TLV431BCDBVTG4 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 +125°C. The device features an adjustable output voltage range from 1.24 V to 36 V, with a maximum input voltage of 37 V. It supports a maximum cathode current of 100 mA and has a minimum operating cathode current of 600 µA. The component 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 output voltage adjustment from 1.24 V up to 36 V using external resistors
• Capable of handling high cathode currents up to 100 mA for robust load driving
• Operates reliably across an extended industrial temperature range of -40°C to +125°C

Applications

• Precision voltage references in battery-powered equipment
• Programmable linear regulators requiring accurate feedback
• Switching power supply feedback loops for output regulation
• Comparator circuits utilizing the internal reference threshold

Procurement Notes

Verify the specific suffix G4 indicates lead-free and RoHS compliance status against the latest manufacturer documentation. Confirm the SOT-23-5 package marking and pinout configuration matches the design requirements. Ensure the selected variant meets the required thermal performance specifications for the intended operating environment. Cross-reference the part number with official distributors to confirm current availability and lifecycle status.

Selection Notes

Select this component when a low-cost, high-accuracy shunt regulator is needed for low-voltage applications. The 0.5% tolerance suits designs requiring tight voltage control without complex calibration. Consider the 100 mA current capability for driving moderate loads directly. The wide input voltage range allows flexibility in supply rail variations. Evaluate the SOT-23-5 footprint constraints against available board space.

Part Context

This device belongs to the TLV431 family of adjustable precision shunt regulators designed for low-voltage operation. It serves as a drop-in replacement for standard TL431 devices in many applications but offers improved performance at lower voltages. The family is widely used in power management circuits due to its reliability and cost-effectiveness. The G4 suffix typically denotes environmental compliance features such as lead-free construction.

Replacement Considerations

Publicly confirmed substitute part numbers include TLV431BCDBVT and TLV431BCDBVTE4. Verify pin compatibility and electrical parameter equivalence before substitution. Check for any differences in packaging or marking codes that may affect assembly processes.