The TLV431 device is a low-voltage 3-terminal adjustable voltage reference with specified thermal stability over applicable industrial and commercial temperature ranges. Output voltage can be set to 1.24V on stand alone mode or any value between VREF (1.24V) and 6V with two external resistors (see Figure 6-2). These devices operate from a lower voltage (1.24V) than the widely used TL431 and TL1431 shunt-regulator references.
When used with an optocoupler, the TLV431 device is a voltage reference in isolated feedback circuits designed for 3V to 3.3V switching-mode power supplies. These devices have a typical output impedance of 0.25Ω. Active output circuitry provides a very sharp turn-on characteristic, making them excellent replacements for low-voltage Zener diodes in many applications, including on-board regulation and adjustable power supplies.
Products with similar specifications, sorted by available TI.com inventory.
| Top documentation | Type | Title | Format options | Date |
|---|---|---|---|---|
| * | Data sheet | TLV431x-Q1 Low-Voltage Adjustable Precision Shunt Regulator datasheet (Rev. B) | PDF | HTML | Jul 19, 2024 |
| E-book | Voltage Supervisor and Reset ICs: Tips, Tricks and Basics | Jun 28, 2019 | ||
| Application brief | Automotive LED Lighting with Adjustable Shunt References | Jul 17, 2018 |
For additional terms or required resources, click any title below to view the detail page where available.
| Package | Pins | CAD symbols, footprints & 3D models |
|---|---|---|
| SOT-23 (DBZ) | 3 | Ultra Librarian |
| SOT-23 (DBV) | 5 | Ultra Librarian |
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