LM4040DEX3-5.0+T

Overview

The LM4040DEX3-5.0+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 1.0%. The device features a maximum temperature coefficient of 150ppm/°C and operates within a temperature range of -40°C to +85°C. It utilizes a subminiature 3-pin SC70 surface-mount package (1.8mm x 1.8mm) and supports a shunt current capability ranging from 60μA to 15mA.

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 exact electrical parameters, temperature range, and package type. Confirm RoHS compliance status through authorized distributors or the manufacturer's official product pages. Ensure the component matches the required pin configuration and thermal characteristics for the intended circuit design before procurement.

Selection Notes

Select this component when a compact footprint is required alongside stable voltage referencing in portable electronics. The 1.0% accuracy grade offers a balance between cost and performance for general-purpose applications. Consider the operating current range and temperature coefficient limits to ensure compatibility with the system's power budget and environmental conditions.

Part Context

This part belongs to the LM4040 family of improved precision micropower shunt voltage references. The series includes multiple grades (A, B, C, D) offering varying levels of initial accuracy and temperature coefficients. The 'D' designation indicates the 1.0% accuracy variant, while the 'EX3' suffix specifies the SC70 package and industrial temperature range options.

Replacement Considerations

LM4040DIM3-5.0+T

FAQ

Does the LM4040DEX3-5.0+T require an external capacitor for stability?

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

What is the minimum operating current for the LM4040DEX3-5.0+T?

The minimum operating current is typically 70μA at room temperature, ensuring proper regulation down to this low current level.