LM4050BEM3-4.1/V+T

Voltage Reference Overview

The LM4050BEM3-4.1/V+T is a precision two-terminal shunt-mode bandgap voltage reference manufactured by Analog Devices/Maxim Integrated. It provides a fixed reverse breakdown voltage of 4.096V with an initial accuracy of 0.2% and a maximum temperature coefficient of 50ppm/°C. The device operates within a wide current range of 60µA to 15mA and is guaranteed over the -40°C to +125°C temperature range. It utilizes a 3-pin SOT-23 surface-mount package.

Voltage Reference Feature Summary

• Laser-trimmed resistors ensure high initial accuracy across multiple grades.
• Capable of maintaining stable reverse breakdown voltage over a wide operating current range.
• Does not require external stabilizing capacitors while ensuring stability with any capacitive loads.

Voltage Reference Applications

• Portable, battery-powered equipment
• Notebook computers
• Cell phones
• Industrial process controls
• Automotive

Voltage Reference Procurement Notes

Verify the specific /V suffix against official documentation to confirm automotive qualification status, as this designation indicates AEC-Q100 compliance for certain variants within the family. Confirm that the SOT-23 package code matches the required footprint for the target PCB design. Ensure the ordering information aligns with the desired accuracy grade and output voltage tolerance specifications.

Voltage Reference Selection Notes

Select this component when space constraints favor the SOT-23 package over the smaller SC70 variant. The 0.2% accuracy grade offers a balance between precision and cost compared to the 0.1% option. Verify that the application load current remains within the 60µA to 15mA operational window to maintain specified performance levels and avoid exceeding absolute maximum ratings.

Voltage Reference Part Context

This part belongs to the LM4050/LM4051 series of micropower shunt voltage references. The series includes multiple fixed reverse breakdown voltages ranging from 1.225V to 5.000V. Variants are available in both SC70 and SOT-23 packages, with different accuracy grades (0.1%, 0.2%, 0.5%) and optional automotive qualification indicated by the /V suffix.

Voltage Reference Replacement Considerations

LM4050BEM3-4.1+T

Voltage Reference FAQ

What is the function of Pin 3 on the LM4050BEM3-4.1/V+T?

Pin 3 is designated as No Connection (N.C.). It must be left unconnected or connected directly to Pin 2 (the negative terminal).

Does the LM4050BEM3-4.1/V+T require an external capacitor for stability?

No, the device does not require an external stabilizing capacitor and is designed to remain stable with any capacitive load.