TLVH431ACDBVTE4

Overview

The TLVH431ACDBVTE4 is a low-voltage adjustable precision shunt regulator manufactured by Texas Instruments. It operates within an input voltage range of up to 20 V and provides an adjustable output voltage from 1.24 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 uA. The component functions reliably across an extended temperature range from -40 C to +125 C and is housed in a compact SOT-23-5 surface-mount package.

Feature Summary

• Provides high-precision voltage regulation with 0.5% initial accuracy for stable reference applications.
• Operates effectively at low voltages, supporting an adjustable output range down to 1.24 V.
• Designed for wide thermal stability, ensuring consistent performance across industrial temperature extremes.

Applications

• Precision voltage references in battery-powered portable devices
• Feedback control loops in low-voltage DC-DC converters
• Voltage monitoring circuits requiring high accuracy

Procurement Notes

Verify the specific suffix TE4 against official Texas Instruments documentation to confirm tape-and-reel packaging specifications and RoHS compliance status. Confirm availability as distribution channels may list this part as obsolete or limited supply. Ensure the ordering part number matches the exact electrical grade and package variant required for your design implementation.

Selection Notes

Select this component when designing low-voltage systems requiring tighter initial accuracy than standard TLV431 variants. The SOT-23-5 package offers space efficiency for dense PCB layouts. Consider the 138 PPM/C temperature coefficient for applications where thermal drift must be minimized without active compensation.

Part Context

This part belongs to the TLVH431B family of low-voltage adjustable shunt regulators. It serves as a successor to older TL431 series components, offering improved performance at lower supply voltages. The device integrates a bandgap reference and error amplifier to maintain precise output regulation under varying load conditions.

Replacement Considerations

Direct substitutes include TLVH431BCDBVTE4 and TLVH431AQDBZR. Verify pin compatibility and electrical parameter alignment before substitution.