TL431QDBZR – Precision Programmable Shunt Voltage Reference IC – SOT-23-3 – TI

The TL431QDBZR from Texas Instruments is a precision, three-terminal programmable shunt regulator designed for accurate voltage reference and regulation applications. Offering excellent thermal stability across the full automotive temperature range, it provides a highly reliable alternative to traditional Zener diodes.

With an adjustable output voltage from 2.4V to 36V, the TL431QDBZR enables flexible design options in on-board regulation, adjustable power supplies, switching regulators, and reference circuits. Its active output circuitry ensures a fast and sharp turn-on characteristic, while its low typical output impedance of 0.2Ω delivers superior load regulation performance.

Housed in a compact SOT-23-3 package, this voltage reference IC is ideal for space-constrained and high-precision electronics.

Features / Specs

• Product Type: Precision Programmable Voltage Reference

• Input Voltage (Max): 37V

• Output Voltage Range: 2.4V to 36V

• Output Impedance: 0.2Ω typical

• Three-terminal adjustable shunt regulator

• Excellent thermal stability across full temperature range

• Sharp turn-on characteristic for accurate regulation

• Operating Temperature: –40°C to +125°C

• Package: SOT-23-3

• Make: Texas Instruments

Applications

• Adjustable power supplies

• Switching power supplies

• Voltage monitoring and reference circuits

• On-board regulation

• Zener diode replacement

• Automotive and industrial electronics

Package Includes

1 × TL431QDBZR – Precision Programmable Shunt Voltage Reference – SOT-23-3

Note: Images are for representation purposes only.