LM4040DIM3X-2.5

Overview

The LM4040DIM3X-2.5 is a micropower shunt voltage reference manufactured by Texas Instruments, designed for precision applications requiring stable voltage regulation in compact form factors. It operates within a temperature range of -40°C to +85°C and utilizes a SOT-23-3 surface-mount package. The device provides a nominal output voltage of 2.5V with an initial accuracy of ±1% and a temperature coefficient of 150 ppm/°C. It supports a maximum shunt current of 15 mA and draws a typical cathode current of 70 µA, ensuring low power consumption while maintaining high stability.

Feature Summary

• Micropower operation with low quiescent current for battery-powered systems
• High precision voltage regulation with tight initial accuracy tolerance
• Compact SOT-23-3 surface-mount packaging for space-constrained designs

Applications

• Portable instrumentation requiring stable reference voltages
• Battery-operated measurement devices
• Data acquisition systems needing precise analog references

Procurement Notes

Verify the specific suffix 'DIM3X' against the official Texas Instruments datasheet to confirm pinout compatibility and electrical specifications. Ensure the component meets RoHS compliance requirements for your region. Check for obsolescence notices or lifecycle status updates directly from the manufacturer before finalizing procurement plans.

Selection Notes

Select this component when a 2.5V reference with ±1% accuracy is required in a small footprint. Consider the 150 ppm/°C temperature coefficient for thermal stability needs. Evaluate the 70 µA operating current against system power budgets. Compare against higher precision variants if tighter tolerances are necessary for the application.

Part Context

This part belongs to the LM4040-N series of micropower shunt voltage references from Texas Instruments. The series offers various fixed output voltages and accuracy grades. The DIM3X designation indicates a specific accuracy grade and tape-and-reel packaging format suitable for automated assembly processes in modern electronics manufacturing.

Replacement Considerations

LM4040CIM3X-2.5/NOPB: Offers improved 100 ppm/°C temperature coefficient. LM4040AIM3X-2.5/NOPB: Provides higher 0.1% initial accuracy. Verify pinout and thermal characteristics before substitution.