LM4050CEM3-5.0/V+T

Voltage Reference Overview

The LM4050CEM3-5.0/V+T is a precision micropower shunt voltage reference manufactured by Analog Devices Inc./Maxim Integrated. It provides a fixed reverse breakdown voltage of 5.000V with an initial accuracy of ±0.5%. The device features a maximum temperature coefficient of 50ppm/°C and operates within a temperature range of -40°C to +125°C. It utilizes a 3-pin SOT-23 surface-mount package and supports a shunt current range from 60µA to 15mA.

Voltage Reference Feature Summary

• Laser-trimmed resistors ensure high initial accuracy across multiple grades.
• Capable of maintaining stable reverse breakdown voltage over wide operating currents.
• Does not require external stabilizing capacitors for frequency stability.
• Ensures stability when connected to any capacitive loads.

Voltage Reference Applications

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

Voltage Reference Procurement Notes

Verify the specific /V suffix against official documentation to confirm automotive qualification status, as this ordering suffix indicates AEC-Q100 compliance. Confirm that the C grade designation corresponds to the required 0.5% initial accuracy tolerance. Ensure the SOT-23 package variant matches the intended PCB footprint requirements.

Voltage Reference Selection Notes

Select this component when a fixed 5.000V reference is required in a space-constrained design. The SOT-23 package offers a smaller footprint compared to standard packages. Consider the 0.5% accuracy grade if tighter tolerances are not necessary. Verify that the application circuit maintains the shunt current between 60µA and 15mA for proper regulation.

Voltage Reference Part Context

This part belongs to the LM4050/LM4051 family of precision two-terminal bandgap voltage references. The family includes various fixed reverse breakdown voltages such as 1.225V, 2.048V, 2.500V, 3.000V, 3.3V, and 4.096V. These devices are designed for applications requiring low power consumption and high precision in small form factors.

Voltage Reference Replacement Considerations

LM4050CEM3-5.0+T

Voltage Reference FAQ

What is the function of Pin 3 on the LM4050CEM3-5.0/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 LM4050CEM3-5.0/V+T require an output capacitor?

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