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TL431CDBZR Breakout
VREF SHUNT REG ADJ 2.5-36V SOT23-3
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Design a Custom BoardAbout This Component
Precision programmable shunt regulator with adjustable output voltage from 2.5V to 36V using external resistors. Features 2% initial tolerance, 0.2Ω typical output impedance, and 1-100mA sink current capability. Ideal for on-board regulation, adjustable power supplies, and switching power supply feedback networks across industrial and consumer applications.
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.
Component specifications
ELECTRICAL CHARACTERISTICS
| Manufacturer | Texas Instruments |
| Part Number | TL431CDBZR |
| 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 TL431CDBZR 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