LM4040CIX3-2.5+T

Overview

The LM4040CIX3-2.5+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 2.500V with an initial accuracy of 0.5%. The device features a maximum temperature coefficient of 100ppm/°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 package type, temperature range, and compliance status. Confirm availability through authorized distributors as supply conditions may vary. Ensure the selected component matches the required electrical specifications for the intended circuit design before procurement.

Selection Notes

Select this component when a compact footprint is required alongside stable voltage referencing in portable or industrial environments. The 0.5% accuracy grade offers a balance between precision and cost. Verify that the operating current remains within the specified 60μA to 15mA range to maintain stability and avoid exceeding power dissipation limits in the SC70 package.

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 such as 2.048V, 3.000V, and 5.000V. The 'C' designation indicates the 0.5% accuracy tier, while 'IX3' specifies the SC70 package configuration.

Replacement Considerations

LM4040BIX3-2.5+T: Offers higher 0.2% initial accuracy with identical package and voltage. LM4040DIX3-2.5+T: Provides lower 1.0% accuracy but maintains the same form factor and electrical interface.