TLV431BILPRE3

Overview

The TLV431BILPRE3 is a low-voltage adjustable precision shunt regulator manufactured by Texas Instruments. It operates within a supply voltage range of 1.24 V to 6 V and provides an initial accuracy of ±0.5%. The device features a temperature coefficient of 138 ppm/°C and supports a maximum cathode current of 15 mA. It functions reliably across an operating temperature range from -40°C to +125°C. The component is housed in a TO-92-3 through-hole package, ensuring compatibility with standard PCB layouts for compact power management designs.

Feature Summary

• Provides high-precision voltage regulation with ±0.5% initial accuracy for stable reference applications
• Operates at low voltages ranging from 1.24 V to 6 V, suitable for battery-powered systems
• Supports wide industrial temperature operation from -40°C to +125°C for robust environmental performance

Applications

• Low-voltage precision voltage references
• Battery-operated equipment power management
• Portable electronic device regulation

Procurement Notes

Verify the specific suffix 'PRE3' confirms RoHS compliance and lead-free status as per manufacturer documentation. Confirm the TO-92-3 package type matches your board layout requirements. Check for End-of-Life notices or Product Change Notifications that may affect long-term availability. Ensure the low-voltage specification (max 6 V) aligns with your circuit design constraints before procurement.

Selection Notes

Select this component when precise voltage referencing is required in low-voltage environments where standard TL431 devices exceed the input voltage limit. The ±0.5% accuracy offers tighter tolerance than standard variants. Consider the TO-92-3 package if through-hole mounting is preferred over surface-mount options like SOT-23. Verify that the 15 mA cathode current capability meets the load requirements of your specific application circuit.

Part Context

This part belongs to the TLV431 family of low-voltage adjustable shunt regulators. It serves as a drop-in replacement for higher voltage counterparts in low-voltage circuits, offering similar functionality but optimized for inputs up to 6 V. The 'B' designation indicates the ±0.5% accuracy grade, while 'I' denotes the industrial temperature range.

Replacement Considerations

TLV431AILPR3 is available as a direct substitute with identical pinout and specifications but lower ±1% accuracy.