Maxim Integrated MAX6003EUR+T series voltage reference, fixed 3V output, ±1% tolerance, SOT-23-3 package, 100ppm/°C drift, 400 µA output current, -40°C to 85°C range.
| Parameter | Value |
|---|---|
| Output type | Fixed |
| Mounting type | Surface Mount |
| Reference type | Series |
| Voltage - input | 3.2V ~ 12.6V |
| Voltage - output (Min (Fixed)) | 3V |
| Current - output | 400 µA |
| Current - supply | 45µA |
| Operating temperature | -40°C ~ 85°C (TA) |
| Package | Tape & Reel (TR); Cut Tape (CT) |
| Tolerance | ±1% |
| Case | TO-236-3, SC-59, SOT-23-3 |
| Noise - 0.1Hz to 10Hz | 75µVp-p |
| Noise - 10Hz to 10kHz | 150µVrms |
| Temperature coefficient | 100ppm/°C |
The 400 µA output current rating is the maximum the reference can source while maintaining regulation. If the load draws more than that, the output voltage will droop.
The MAX6003EUR+T is listed as Active, with no end-of-life notice. It is ROHS3 compliant. No LTB risk for new designs.
The MAX6003EUR+T is the Tape & Reel packaging variant of the MAX6003EUR base part. The electrical specifications — 3V fixed output, ±1% tolerance, 100 ppm/°C drift, 400 µA output — are identical. The 'T' suffix indicates Tape & Reel (TR) and Cut Tape (CT) delivery, while the base part typically ships in tube or bulk. For production reels, order the 'T' variant; for prototyping or small quantities, the base part or cut tape works.
Yes. The input voltage range is 3.2V to 12.6V, so a 3.3V rail provides enough headroom (0.1V dropout) for the 3V output. The reference will regulate 3V from a 3.3V supply as long as the input stays above 3.2V.
The maximum output current is 400 µA. The reference can source up to that current while maintaining its specified accuracy. Exceeding 400 µA will cause the output voltage to drop out of regulation.
Pin-compatible equivalents in the same SOT-23-3 footprint include other series references with fixed 3V output, such as the MAX6003EUR (same die, different packaging) or devices from Texas Instruments (e.g., REF3033) and Microchip (MCP1501-30). Verify the tolerance, drift, and output current against your BOM requirements before substituting.