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TL431BIDR Breakout
IC VREF SHUNT ADJ 0.5% 8SOIC
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Design a Custom BoardAbout This Component
Precision programmable shunt regulator with 0.5% reference voltage tolerance and adjustable output from 2.5V to 36V. Designed for use in switching power supplies, industrial AC/DC converters, and on-board regulation circuits. Features low output impedance (0.2Ω typical), sink current capability up to 100mA, and stable operation across -40°C to 125°C temperature range.
Package: SOIC-8 (3.9×4.9mm) · 8 pins
Why does this need a breakout?
An 8-pin SOIC with 1.27mm pitch is too fine for breadboards and hand-soldering without a microscope. A breakout board routes these pins to standard 0.1" headers, enabling rapid prototyping and reliable connections for op-amps, transceivers, and small power MOSFETs without requiring reflow equipment.
Component specifications
ELECTRICAL CHARACTERISTICS
| Manufacturer | Texas Instruments |
| Part Number | TL431BIDR |
| Package | SOIC-8 (3.9×4.9mm) |
| Pin Count | 8 |
| 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 TL431BIDR 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