LM4040CEM3-5.0+T

Overview

The LM4040CEM3-5.0+T is a precision micropower shunt voltage reference manufactured by Analog Devices Inc./Maxim Integrated. It provides a fixed reverse-breakdown output voltage of 5.000V with an initial accuracy of 0.5%. The device operates within a temperature range of -40°C to +125°C and features a maximum average reverse voltage temperature coefficient of 100ppm/°C. It utilizes a subminiature 3-pin SOT-23 surface-mount package, supports a shunt current range from 60μA to 15mA, and maintains stability without requiring external stabilizing capacitors.

Feature Summary

• Laser-trimmed resistors ensure precise initial accuracy across multiple grades.
• Stable operation guaranteed over wide operating currents and temperatures.
• Capable of tolerating any capacitive load without external stabilization components.

Applications

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

Procurement Notes

Verify the specific ordering suffix against official manufacturer documentation to confirm package type, temperature grade, and RoHS compliance status. Confirm that the intended application environment remains within the specified operational limits for the C-grade variant. Ensure sourcing channels are authorized distributors to guarantee component authenticity and traceability.

Selection Notes

Select this component when space constraints require a compact SOT-23 footprint while maintaining high precision. The 0.5% accuracy grade offers a balance between cost and performance for general-purpose applications. Consider the extended industrial temperature range suitability for environments subject to significant thermal variations.

Part Context

This part belongs to the LM4040 family of improved precision micropower shunt voltage references. The family includes various fixed voltage options and accuracy grades (A, B, C, D) housed in SC70 or SOT-23 packages. The 'C' designation indicates the 0.5% initial accuracy tier, while the 'E' suffix specifies the extended industrial temperature range capability.

Replacement Considerations

LM4040CEM3-5.0/V+T

FAQ

Does the LM4040CEM3-5.0+T require an external capacitor for frequency stability?

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

What is the minimum operating current required for proper regulation?

The minimum operating current is typically 60μA, though it can be as low as 45μA depending on the specific conditions.