LM4050AEX3-2.1+T

Voltage Reference Overview

The LM4050AEX3-2.1+T is a precision two-terminal shunt-mode bandgap voltage reference manufactured by Analog Devices Inc./Maxim Integrated. It provides a fixed reverse breakdown voltage of 2.048V with an initial accuracy of 0.1% and a maximum temperature coefficient of 50ppm/°C. The device operates within a wide current range from 60µA to 15mA and features low dynamic impedance. It is housed in a subminiature 3-pin SC70 surface-mount package (1.8mm x 1.8mm) and is guaranteed to function over a temperature range of -40°C to +125°C.

Voltage Reference Feature Summary

• Ultra-small 3-pin SC70 surface-mount package for space-critical applications
• Laser-trimmed resistors ensure excellent initial accuracy
• Stable reverse breakdown voltage across wide operating temperatures and currents
• No external stabilizing capacitor required while ensuring stability with any capacitive loads

Voltage Reference Applications

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

Voltage Reference Procurement Notes

Verify the specific ordering suffix against official documentation to confirm package type and RoHS compliance status. Confirm that the component matches the intended electrical requirements for the target application. Check for automotive qualification if the /V suffix is present. Ensure sourcing channels provide authentic parts from authorized distributors or manufacturers.

Voltage Reference Selection Notes

Select this component when a precise 2.048V reference is needed in a compact footprint. The 0.1% accuracy grade suits high-precision analog circuits. Consider the 60µA minimum operating current for low-power designs. Evaluate thermal dissipation limits at maximum load currents to prevent exceeding junction temperature ratings.

Voltage Reference Part Context

This part belongs to the LM4050/LM4051 family of micropower shunt voltage references. The series offers multiple fixed reverse breakdown voltages including 1.225V, 2.500V, 3.000V, 3.3V, 4.096V, and 5.000V. Variants are available in both SC70 and SOT23 packages with different accuracy grades ranging from 0.1% to 0.5%.

Voltage Reference Replacement Considerations

LM4050BEX3-2.1+T (0.2% accuracy)

Voltage Reference FAQ

Does the LM4050AEX3-2.1+T require an external capacitor for stability?

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

What is the minimum operating current for this reference?

The minimum operating current is typically 60µA, though it can vary slightly based on the specific output voltage variant.