LM4050QAIM3X5.0/NOPB

Voltage Reference Overview

The LM4050QAIM3X5.0/NOPB is a precision micropower shunt voltage reference from Texas Instruments, featuring a fixed reverse breakdown voltage of 5 V at an operating current (IR) of 100 μA. It offers an initial accuracy of ±0.1% and a maximum temperature coefficient of 50 ppm/°C across the extended industrial range of −40°C to 125°C. The device operates within a wide current range from 56 μA to 15 mA, with a typical minimum operating current of 74 μA at 25°C. It utilizes a compact SOT-23 package and requires no external stabilizing capacitor.

Voltage Reference Feature Summary

• Eliminates the need for an external stabilizing capacitor while ensuring 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 over wide temperature ranges

Voltage Reference Applications

• Portable, battery-powered equipment
• Data acquisition systems
• Instrumentation
• Process control
• Automotive applications

Voltage Reference Procurement Notes

Verify that the ordering suffix 'NOPB' indicates lead-free status without altering electrical function. Confirm the 'QI' designation aligns with AEC-Q100 Grade 1 qualification requirements. Ensure the specific package variant matches the required PCB footprint. Cross-reference the datasheet revision date against manufacturing lot dates to confirm technical specifications.

Voltage Reference Selection Notes

Select this component when space constraints require a sub-miniature SOT-23 package. Choose this part for applications demanding high initial accuracy of ±0.1% at room temperature. It is suitable for designs requiring operation up to 125°C ambient temperature. Verify that the system can maintain the minimum operating current above 56 μA for proper regulation.

Voltage Reference Part Context

This device belongs to the LM4050-N family of precision micropower shunt voltage references. The 'Q' in the part number denotes automotive-grade qualification under AEC-Q100 standards. The 'A' grade specifies the tightest initial tolerance class available for this series. The 'X' suffix typically indicates reel packaging for automated assembly processes.

Voltage Reference Replacement Considerations

LM4050AIM3X-5.0/NOPB

Voltage Reference FAQ

Does the LM4050QAIM3X5.0/NOPB require an output capacitor?

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

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

The minimum operating current is 56 μA at 25°C and increases to 80 μA across the full industrial temperature range.