TLV431QPKG3

Overview

The TLV431QPKG3 is an adjustable precision shunt regulator manufactured by Texas Instruments, designed for low-voltage applications. It operates within a supply voltage range of 2.5 V to 6 V and provides an adjustable output voltage starting from a minimum reference of 1.24 V up to the maximum limit of 6 V. The device features an initial accuracy tolerance of ±1.5% and supports a cathode current range from 80 µA to 15 mA. It is housed in a compact SOT-89-3 surface-mount package and is rated for operation across an extended temperature range of -40°C to 125°C.

Feature Summary

• Provides precise voltage regulation with an initial accuracy of ±1.5% for stable reference performance.
• Supports low-voltage operation with a minimum operating voltage of 2.5 V and adjustable output down to 1.24 V.
• Features a compact SOT-89-3 surface-mount package suitable for space-constrained designs.
• Operates reliably across an extended industrial temperature range from -40°C to 125°C.

Applications

• Low-voltage portable electronic devices requiring precise voltage references
• Battery-powered systems needing efficient power management
• Industrial control circuits utilizing surface-mount topology

Procurement Notes

Verify component authenticity through authorized channels due to end-of-life status. Confirm RoHS3 compliance and MSL level 2 handling requirements during storage and assembly. Cross-reference datasheet specifications against design constraints to ensure compatibility with existing circuit architectures.

Selection Notes

Select this component when low-voltage operation below 6 V is required alongside high precision. Consider the 15 mA cathode current capability for moderate load driving. Evaluate thermal performance within the specified -40°C to 125°C range for environmental suitability.

Part Context

Part of the TLV431 family of adjustable shunt regulators, optimized for low-voltage applications compared to standard TL431 variants. Offers improved accuracy and lower minimum operating voltage, making it suitable for modern portable and battery-operated electronics requiring compact packaging solutions.

Replacement Considerations

TLV431QPK is listed as a manufacturer-recommended alternative. Verify pinout compatibility and electrical parameter alignment before substitution.

FAQ

What is the minimum operating voltage for the TLV431QPKG3?

The minimum operating voltage is 2.5 V.

What is the adjustable output voltage range?

The output voltage is adjustable from 1.24 V to 6 V.