Texas Instruments TL431AIDBVR, adjustable shunt voltage reference, 2.495V, ±1% tolerance, 100 mA output, -40°C to 85°C, SOT-23-5 package.
| Parameter | Value |
|---|---|
| Output type | Adjustable |
| Mounting | Surface Mount |
| Reference type | Shunt |
| Voltage - output | 36 V |
| Voltage - output (Min (Fixed)) | 2.495V |
| Output current | 100 mA |
| Current - cathode | 700 µA |
| Operating temperature | -40°C~85°C(TA) |
| Package | Tape & Reel (TR); Cut Tape (CT) |
| Tolerance | ±1% |
| Case | SC-74A, SOT-753 |
The TL431AIDBVR is a three-terminal adjustable shunt voltage reference from the TL431 family, delivering a nominal 2.495 V output with ±1% initial tolerance — the 'A' grade tightens the band from the standard 2.2% variant, which matters when the reference sets the feedback threshold for a switching regulator or an ADC's Vref input.
The TL431AIDBVR is sourced to order through independent and authorized distribution.
The TL431CLP is a through-hole TO-92 package; the TL431AIDBVR is a surface-mount SOT-23-5. Electrically both are adjustable shunt references with a 2.495 V reference, but the package and pinout differ — a board layout change is required for replacement. The TL431AIDBVR offers ±1% tolerance versus the CLP's typical ±2% grade.