LM4050QCIM3-2.0/NOPB

Voltage Reference Overview

The LM4050QCIM3-2.0/NOPB is a precision micropower shunt voltage reference manufactured by Texas Instruments, designed for automotive applications with AEC-Q100 qualification. It provides a fixed output voltage of 2.048 V with an initial accuracy of ±0.5%. The device operates within a temperature range of -40°C to +125°C and features a temperature coefficient of 50 ppm/°C. It supports a maximum shunt current of 15 mA and draws a cathode current of 80 µA. Packaged in a compact SOT-23-3 surface-mount case, it offers stable reference performance in space-constrained designs.

Voltage Reference Feature Summary

• Automotive-grade reliability certified under AEC-Q100 standards
• Micropower operation with low quiescent current consumption
• Precision voltage regulation with tight initial tolerance
• Compact three-terminal surface-mount packaging

Voltage Reference Applications

• Automotive sensor signal conditioning circuits
• Data acquisition systems requiring stable reference voltages
• Portable battery-powered instrumentation
• Microcontroller analog-to-digital converter references

Voltage Reference Procurement Notes

Verify the specific suffix 'Q' confirms AEC-Q100 automotive qualification and 'C' indicates the 0.5% accuracy grade. Confirm the '-2.0' designation matches the required 2.048V output. Check for 'NOPB' to ensure lead-free compliance. Validate package marking against SOT-23-3 physical dimensions. Ensure sourcing channels provide traceability for automotive supply chain requirements.

Voltage Reference Selection Notes

Select this component when a fixed 2.048V reference is needed in automotive environments. Compare against other LM4050 variants if different voltage levels or accuracy grades are required. Consider the SOT-23-3 footprint constraints during PCB layout. Evaluate thermal management needs based on the 125°C maximum operating temperature limit. Verify compatibility with system noise requirements given the shunt topology.

Voltage Reference Part Context

This part belongs to the LM4050 family of precision micropower shunt voltage references from Texas Instruments. The family includes various output voltages and accuracy grades, all sharing similar low-power characteristics and automotive qualification options. The LM4050 series is widely used in industrial and automotive applications where stable voltage references are critical for measurement accuracy.

Voltage Reference Replacement Considerations

LM4050QCIM3X2.0/NOPB serves as a direct equivalent with identical electrical specifications and packaging. Other LM4050 variants may substitute if voltage or accuracy differences are acceptable. Non-TI equivalents require verification of temperature coefficient and automotive certification status.