Texas Instruments LM4040CIM3-5.0, precision shunt voltage reference, fixed 5V output, ±0.5% tolerance, 80 µVrms noise, SOT-23-3 package, -40°C to 85°C.
| Parameter | Value |
|---|---|
| Output type | Fixed |
| Mounting | Surface Mount |
| Reference type | Shunt |
| Voltage - output (Min (Fixed)) | 5V |
| Output current | 15 mA |
| Current - cathode | 80 µA |
| Operating temperature | -40°C~85°C(TA) |
| Package | Tape & Reel (TR); Cut Tape (CT) |
| Tolerance | ±0.5% |
| Case | TO-236-3, SC-59, SOT-23-3 |
| Noise - 10Hz to 10kHz | 80µVrms |
| Temperature coefficient | 100ppm/°C |
The ±0.5% initial tolerance places it in the standard-precision tier for this family, suitable for ADC references, comparator thresholds, and regulator feedback networks where 0.5% accuracy is sufficient.
Housed in a SOT-23-3 package (also known as TO-236-3, SC-59), the part is surface-mount and occupies minimal board area.
The LM4040CIM3-5.0 is obsolete and no longer available through the original manufacturer. It can be sourced through independent distribution channels.
The initial accuracy is ±0.5% at 25°C. For tighter accuracy, consider the ±0.1% or ±0.2% grades in the same LM4040 family.
Yes, the LM4040CIM3-5.0 is a fixed 5V shunt reference. It provides a stable 5V output as long as the cathode current is maintained between 80 µA and 15 mA. The shunt resistor value must be calculated based on the supply voltage and load current to keep the device in regulation.