LM4050QCIM3X5.0/NOPB

Voltage Reference Overview

The LM4050QCIM3X5.0/NOPB is a precision micropower shunt voltage reference from Texas Instruments, featuring a fixed 5V output with ±0.5% initial tolerance at 25°C. It operates within an industrial temperature range of -40°C to 85°C and utilizes a compact SOT-23 package. The device supports a wide operating current range from 74μA to 15mA, ensuring stability without external capacitors even under capacitive loads. Key electrical characteristics include a maximum temperature coefficient of 50ppm/°C and typical wideband noise of 93μVrms.

Voltage Reference Feature Summary

• Eliminates the need for external stabilizing capacitors while maintaining stability with any capacitive load
• Utilizes fuse and Zener-zap reverse breakdown voltage trim during wafer sort to ensure high accuracy
• Bandgap reference temperature drift curvature correction ensures stable performance across varying temperatures

Voltage Reference Applications

• Portable, battery-powered equipment
• Data acquisition systems
• Instrumentation
• Process control
• Precision audio components

Voltage Reference Procurement Notes

Verify the specific suffix 'QCI' against official documentation to confirm the exact grade (C-grade) and temperature range (Industrial). Ensure the ordering code matches the required tolerance and package configuration. Confirm availability status as product lifecycles may change. Cross-reference the datasheet revision date to ensure compliance with current specifications.

Voltage Reference Selection Notes

Select this component when space constraints require a sub-miniature SOT-23 package. Choose this part for applications needing a fixed 5V reference with moderate precision requirements. Consider the extended operating current range for low-power designs. Verify that the industrial temperature range meets the environmental conditions of the target application.

Voltage Reference Part Context

This device belongs to the LM4050-N family of precision micropower shunt voltage references. The family offers various fixed reverse breakdown voltages including 2.048V, 2.5V, 4.096V, 5V, 8.192V, and 10V. The LM4050-Q1 variant is AEC-Q100 Grade 1 qualified for automotive use, whereas the standard LM4050-N serves general industrial and commercial applications.

Voltage Reference Replacement Considerations

LM4050CEM3X-5.0/NOPB

Voltage Reference FAQ

Does the LM4050QCIM3X5.0/NOPB require an output capacitor?

No, the LM4050-N design eliminates the need for an external stabilizing capacitor while ensuring stability with any capacitive load.

What is the minimum operating current for the 5V option?

For the 5V option in the industrial temperature range, the minimum operating current is typically 74μA at 25°C and up to 80μA across the full temperature range.