Texas Instruments LM385M3-2.5/NOPB, shunt voltage reference, fixed 2.5 V output, ±3% tolerance, 20 mA output, 15 µA cathode current, SOT-23-3, 0°C to 70°C.
| Parameter | Value |
|---|---|
| Output type | Fixed |
| Mounting | Surface Mount |
| Reference type | Shunt |
| Voltage - output (Min (Fixed)) | 2.5V |
| Output current | 20 mA |
| Current - cathode | 15 µA |
| Operating temperature | 0°C~70°C(TA) |
| Package | Tape & Reel (TR); Cut Tape (CT) |
| Tolerance | ±3% |
| Case | TO-236-3, SC-59, SOT-23-3 |
| Noise - 10Hz to 10kHz | 120µVrms |
| Temperature coefficient | 150ppm/°C |
The Texas Instruments LM385M3-2.5/NOPB is a shunt voltage reference that delivers a fixed 2.5 V output with a ±3% tolerance. As a shunt reference, it regulates voltage by shunting current through the cathode — the operating window sits between a 15 µA minimum cathode current and a 20 mA maximum output current. Keep the bias resistor sized so the shunt current stays within that band across load and input variation.
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