LM4050QBIM3X4.1/NOPB

Voltage Reference Overview

The LM4050QBIM3X4.1/NOPB is a precision micropower shunt voltage reference from Texas Instruments, featuring a fixed reverse breakdown voltage of 4.096 V at an operating current of 100 μA. It offers an initial output voltage tolerance of ±0.1% and a maximum temperature coefficient of 50 ppm/°C. The device operates within a wide current range of 78 μA to 15 mA and exhibits a typical wideband noise of 93 μVrms between 10 Hz and 10 kHz. It is housed in a compact SOT-23 package and supports extended industrial temperatures from -40°C to 125°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 varying conditions

Voltage Reference Applications

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

Voltage Reference Procurement Notes

Verify the specific suffix 'Q' indicates automotive-grade qualification (AEC-Q100) and 'B' denotes the ±0.1% tolerance grade. Confirm the 'X' suffix aligns with the manufacturer's reel packaging specifications. Ensure the component matches the exact pinout and thermal characteristics defined in the official datasheet before integration.

Voltage Reference Selection Notes

Select this component when space constraints require a sub-miniature SOT-23 package. Choose this part if the application demands high initial accuracy with ±0.1% tolerance and requires operation without external output capacitors. It is suitable for designs needing low power consumption with a minimum operating current as low as 78 μA.

Voltage Reference Part Context

This device belongs to the LM4050-N family of precision micropower shunt voltage references. The family provides various fixed voltage options including 2.048 V, 2.5 V, 5 V, and 10 V. The LM4050-N-Q1 variant is specifically qualified for automotive applications, offering reliability under harsh environmental conditions compared to standard industrial versions.

Voltage Reference Replacement Considerations

LM4050QBEM3X4.1/NOPB

Voltage Reference FAQ

Does the LM4050QBIM3X4.1/NOPB require an external capacitor for stability?

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 4.1-V option?

The minimum operating current is 78 μA at extended temperature ranges (-40°C to 125°C).