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LM431BIM3X/NOPB Breakout
IC VREF SHUNT ADJ 1% SOT23-3
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Design a Custom BoardAbout This Component
Programmable shunt voltage reference IC with 1% accuracy and 0.5V to 36V output range. Features adjustable reference voltage via external resistor divider, suitable for battery monitoring, power supply feedback, and precision voltage regulation circuits. Ideal for space-constrained applications requiring stable reference generation in SOT-23 package.
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 | LM431BIM3X/NOPB |
| Package | SOT-23-3 |
| Pin Count | 3 |
| Current - Output | 100 mA |
| Output Type | Adjustable |
| Voltage - Output (Max) | 37 V |
| Voltage - Output (Min/Fixed) | 2.495V |
What's Included
BILL OF MATERIALS
- 1x LM431BIM3X/NOPB 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