LM4050QCIM3X4.1/NOPB

Voltage Reference Overview

The LM4050QCIM3X4.1/NOPB is a precision micropower shunt voltage reference from Texas Instruments, featuring a fixed reverse breakdown voltage of 4.096 V at an initial accuracy of ±0.5%. It operates within an extended temperature range of −40°C to +125°C and utilizes a compact SOT-23 package. The device supports a wide operating current range from 78 μA to 15 mA with a maximum temperature coefficient of 50 ppm/°C.

Voltage Reference Feature Summary

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

Voltage Reference Applications

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

Voltage Reference Procurement Notes

Verify that the ordering suffix 'QCI' corresponds to the specific grade (C), voltage option (4.1), and package type (M3) required for your design. Confirm the extended temperature range (-40°C to +125°C) matches your environmental specifications. Ensure the datasheet version aligns with the manufacturing lot to guarantee parameter consistency.

Voltage Reference Selection Notes

Select this component when space constraints require a sub-miniature SOT-23 package. Choose this part if the application demands a fixed 4.096 V reference with moderate precision (±0.5%) without requiring external compensation capacitors. Consider the extended temperature range suitability for harsh environments where industrial grades are insufficient.

Voltage Reference Part Context

This device belongs to the LM4050-N family of precision micropower shunt voltage references. The family offers various fixed voltage options including 2.048 V, 2.5 V, 4.096 V, 5 V, 8.192 V, and 10 V. The LM4050-Q1 variant indicates automotive qualification under AEC-Q100 standards, though standard N versions are available for general industrial use.

Voltage Reference Replacement Considerations

LM4050CIM3X4.1/NOPB: Industrial grade equivalent with identical electrical characteristics but limited to -40°C to +85°C operation.