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TL431AQDBZRQ1
IC VREF SHUNT ADJ 1% SOT23-3
Texas Instruments
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Design a Custom BoardAbout This Component
Adjustable precision shunt regulator qualified for automotive applications with 1% reference voltage tolerance and output voltage adjustable from 2.5V to 36V using two external resistors. Features 0.2Ω typical output impedance, 1-100mA sink current capability, and low temperature drift. Ideal for flyback power supply regulation, Zener replacement, and voltage monitoring circuits.
Package: SOT-23-3 · 3 pins
Why does this need a breakout?
SOT-23's tiny 0.95mm pin pitch and compact form factor make hand-soldering tedious and prone to bridging errors. A breakout board breaks out the three pins to standard 0.1" spacing for breadboard prototyping, eliminating the need for specialized soldering equipment and enabling fast circuit iteration with transistors, diodes, and small-signal components.
Specifications
ELECTRICAL CHARACTERISTICS
| Manufacturer | Texas Instruments |
| Part Number | TL431AQDBZRQ1 |
| Package | SOT-23-3 |
| Pin Count | 3 |
| Current - Output | 100 mA |
| Output Type | Adjustable |
| Voltage - Output (Max) | 36 V |
| Voltage - Output (Min/Fixed) | 2.495V |
What's Included
BILL OF MATERIALS
- 1x TL431AQDBZRQ1 soldered onto breakout PCB
- Pin headers pre-soldered (2.54mm / 0.1" pitch)
- All IC pins broken out to 2.54mm headers
Breakout Board Design
PCB SPECIFICATIONS
WIDTH
< 0.9" (straddles breadboard)
PITCH
2.54mm standard
SOLDER
Lead-free, reflow assembled
FINISH
FR4, lead-free HASL