LM4040CEX3-5.0+T

Overview

The LM4040CEX3-5.0+T is a precision, two-terminal shunt mode bandgap 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 supports a wide operating current range from 60µA to 15mA and utilizes a subminiature 3-pin SC70 surface-mount package.

Feature Summary

• Ultra-small 3-pin SC70 package designed for space-critical applications
• Laser-trimmed resistors ensure precise initial accuracy
• Stable operation without requiring external stabilizing capacitors
• Capable of tolerating any capacitive load

Applications

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

Procurement Notes

Verify the specific ordering suffix against official manufacturer documentation to confirm package type, temperature grade, and compliance status. Ensure that the selected component matches the required electrical specifications for the target application environment. Cross-reference part numbers with authorized distributors to validate authenticity and availability before procurement.

Selection Notes

Select this component when a compact footprint is required alongside stable voltage referencing in portable or industrial designs. Consider the 0.5% initial accuracy and 100ppm/°C temperature coefficient for circuit tolerance requirements. Evaluate the thermal resistance characteristics if high ambient temperatures are expected during operation.

Part Context

This component belongs to the LM4040 family of improved precision micropower shunt voltage references. The family offers multiple fixed reverse-breakdown voltages including 2.048V, 2.500V, 3.000V, 3.3V, 4.096V, and 5.000V. Variants are available in different accuracy grades and packages such as SOT23-3 and SC70-3 to suit various design constraints.

Replacement Considerations

LM4040CEM3-5.0+T (SOT23-3 package)

FAQ

Does the LM4040CEX3-5.0+T require an external capacitor for stability?

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

What is the minimum operating current for this device?

The minimum operating current is typically 60µA, though it can vary slightly based on specific conditions.