LM4040EIM3X-2.5

Overview

The LM4040EIM3X-2.5 is a micropower shunt voltage reference from Texas Instruments, housed in a SOT-23-3 surface-mount package. It provides a nominal output voltage of 2.5 V with an initial accuracy of 1%. The device operates within a temperature range of -40°C to +85°C and features a temperature coefficient of 150 ppm/°C. Maximum shunt current is rated at 15 mA.

Feature Summary

• Provides stable precision voltage reference performance in a compact form factor
• Designed for low power consumption applications through micropower operation
• Utilizes shunt regulation architecture for simple circuit integration

Applications

• Portable battery-powered instrumentation systems
• Data acquisition circuits requiring stable reference voltages
• Handheld measurement devices

Procurement Notes

Verify the specific suffix 'E' against official Texas Instruments documentation to confirm the exact accuracy grade and temperature coefficient specifications. Ensure the ordering part number matches the required tolerance and thermal characteristics for your design. Confirm availability status as distribution data may vary.

Selection Notes

Select this component when a 2.5 V reference with 1% initial accuracy is sufficient for the application. Consider the 150 ppm/°C temperature coefficient for thermal stability requirements. Verify that the SOT-23-3 package dimensions fit the PCB layout constraints and that the 15 mA maximum shunt current meets the load requirements.

Part Context

This component belongs to the LM4040-N series of precision micropower shunt voltage references manufactured by Texas Instruments. The series offers various fixed voltage options and accuracy grades, all sharing similar low-power operational characteristics and compact packaging suitable for space-constrained electronic designs.

Replacement Considerations

LM4040EIM3X-2.5/NOPB