TLVH431BCDBVTG4

Overview

The TLVH431BCDBVTG4 is a low-voltage adjustable precision shunt regulator manufactured by Texas Instruments. It provides an initial accuracy of 0.5% and features a maximum temperature coefficient of 138 ppm/°C. The device operates within a voltage range from 1.24 V to 18 V, with a maximum input voltage of 20 V. It supports a cathode current range from 80 µA to 80 mA. The component is housed in a SOT-23-5 package and functions across a temperature range of -40°C to +125°C.

Feature Summary

• Provides high-precision voltage regulation with 0.5% initial accuracy for stable reference performance.
• Features a wide operating current range supporting applications from microampere standby to 80 mA loads.
• Designed for low-voltage systems with an adjustable output range up to 18 V.

Applications

• Battery-powered equipment requiring precise voltage references
• Microcontroller (MCU) power supply monitoring circuits
• Portable instrumentation and measurement devices

Procurement Notes

Verify the specific suffix 'G4' indicates lead-free and RoHS compliance status as per manufacturer documentation. Confirm the SOT-23-5 package dimensions match PCB footprint requirements. Ensure the selected variant meets the required operating temperature range of -40°C to +125°C for the intended application environment. Cross-reference datasheet electrical characteristics against system design constraints.

Selection Notes

Select this component when a low-voltage adjustable reference with 0.5% accuracy is required. The wide cathode current range allows flexibility in load conditions without external buffering. Consider the SOT-23-5 package for space-constrained designs. Verify that the 20 V maximum input voltage aligns with the system's supply rails. Compare against standard TLV431 variants if higher voltage tolerance or different packaging is needed.

Part Context

This part belongs to the TLVH431 series, which extends the functionality of the traditional TL431 family. It is optimized for low-voltage operation while maintaining precision. The device serves as a three-terminal voltage reference and shunt regulator, commonly used in power management integrated circuits (PMIC) and general-purpose analog signal conditioning tasks within Texas Instruments' portfolio.

Replacement Considerations

Direct substitutes include other TLVH431B variants with compatible packages such as TLVH431BIDCKR (SC-70-6). For legacy replacements, the TLV431BIDBVTG4 offers similar functionality but may differ in operating current ranges and temperature specifications. Always verify pinout compatibility and electrical parameters before substitution.