LM4040BEX3-2.5+T

Overview

The LM4040BEX3-2.5+T is a precision micropower shunt voltage reference manufactured by Analog Devices Inc./Maxim Integrated. It provides a fixed reverse-breakdown output voltage of 2.500V with an initial accuracy of ±0.2%. The device features a maximum temperature coefficient of 100ppm/°C and operates within a temperature range of -40°C to +125°C. It utilizes a subminiature 3-pin SC70 surface-mount package (1.8mm x 1.8mm) and supports a shunt current range from 60μA to 15mA.

Feature Summary

• Ultra-small 3-pin SC70 package for space-critical applications
• Laser-trimmed resistors ensure precise initial accuracy
• Stable operation without 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 suffixes against official manufacturer documentation to confirm exact specifications such as temperature grade and packaging format. Confirm RoHS compliance status and lead-free requirements prior to procurement. Ensure compatibility with existing PCB land patterns for the SC70 package.

Selection Notes

Select this component when high precision and low power consumption are required in compact designs. The B-grade offers a balance of tight tolerance and extended industrial temperature range. Verify that the application's operating current remains within the specified 60μA to 15mA window to maintain stability.

Part Context

This part belongs to the LM4040 family of improved precision micropower shunt voltage references. The family includes various grades (A, B, C, D) offering different accuracy levels and multiple fixed voltage options. The 'E' designation indicates the extended temperature range variant suitable for demanding environments.

Replacement Considerations

LM4040BIX3-2.5+T: Same electrical specifications but housed in a SOT23-3 package instead of SC70.