LM4050CEM3-2.1+T

Voltage Reference Overview

The LM4050CEM3-2.1+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 2.048V with an initial accuracy of 0.5% and a maximum temperature coefficient of 50ppm/°C. The device operates within a wide current range from 60µA to 15mA and functions reliably across a temperature range of -40°C to +125°C. It utilizes a 3-pin SOT-23 surface-mount package.

Voltage Reference Feature Summary

• Laser-trimmed resistors ensure excellent initial accuracy without requiring external stabilizing capacitors.
• Low dynamic impedance maintains stable reverse breakdown voltage accuracy over a wide range of operating temperatures and currents.
• Ensures stability with any capacitive loads while tolerating wide operating current ranges.

Voltage Reference Applications

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

Voltage Reference Procurement Notes

Verify the specific suffix 'EM3' corresponds to the SOT-23 package variant rather than SC70. Confirm that the '+T' designation indicates tape-and-reel packaging. Ensure the component meets RoHS compliance requirements for your assembly process. Cross-reference the manufacturer's ordering information to validate availability and lead times before finalizing procurement plans.

Voltage Reference Selection Notes

Select this component when a 2.048V reference is required in a space-constrained design using a 3-pin SOT-23 footprint. Choose this grade if a 0.5% initial accuracy tolerance is sufficient for the application. Consider the 60µA minimum operating current when designing bias circuits for low-power standby modes.

Voltage Reference Part Context

This part belongs to the LM4050/LM4051 family of micropower shunt voltage references. The family offers multiple fixed reverse breakdown voltages including 1.225V, 2.500V, and 5.000V. Variants are available in both SC70 and SOT-23 packages with different accuracy grades ranging from 0.1% to 0.5%.

Voltage Reference Replacement Considerations

LM4050CEX3-2.1+T (SC70 package equivalent)

Voltage Reference FAQ

Does the LM4050CEM3-2.1+T require an external capacitor for stability?

No, the device does not require an external stabilizing capacitor and ensures stability with any capacitive loads.

What is the minimum operating current for this reference?

The minimum operating current is 60µA.