TLVH431BQDBVR

Overview

The TLVH431BQDBVR is a low-voltage adjustable precision shunt regulator manufactured by Texas Instruments. It operates within a supply voltage range of up to 20 V and provides an adjustable output voltage from 1.25 V to 18 V. The device features an initial accuracy of 0.5% and a temperature coefficient of 138 PPM/°C. It supports a maximum shunt current of 80 mA with a minimum operating current of 80 µA. The component is housed in a SOT-23-5 package and functions reliably across an extended temperature range from -40°C to +125°C.

Feature Summary

• Provides high-precision voltage regulation with 0.5% initial accuracy for stable reference applications.
• Supports a wide operating current range, enabling efficient performance from microampere levels up to 80 mA.
• Designed for low-voltage systems with an input voltage capability of up to 20 V.

Applications

• Precision voltage references in battery-powered portable devices
• Feedback control loops in DC-DC converters and power supplies
• Voltage monitoring circuits requiring high stability over temperature

Procurement Notes

Verify the specific suffix DBVR corresponds to the SOT-23-5 package and reel/cut-tape availability when sourcing. Confirm RoHS compliance status through official manufacturer documentation or authorized distributor datasheets prior to integration. Ensure design parameters align with the specified 80 mA maximum shunt current and 125°C maximum operating temperature limits for reliable long-term operation.

Selection Notes

Select this component when precise voltage referencing is required in space-constrained designs utilizing the SOT-23-5 footprint. It is suitable for applications demanding low initial error and stable performance across industrial temperature ranges. Consider the 80 µA minimum cathode current requirement to ensure proper regulation during light-load conditions compared to standard shunt regulators.

Part Context

This part belongs to the TLVH431B series of low-voltage adjustable precision shunt regulators. It serves as a modern replacement for traditional bandgap references in compact power management solutions. The device integrates a temperature-compensated bandgap reference with a high-gain operational amplifier and output transistor in a single monolithic IC structure.

Replacement Considerations

The TL431BQDBVR is a related variant within the same family but may differ in electrical specifications such as operating current range or accuracy. Verify pin compatibility and parameter alignment before substitution.