LM4040DIM3-5.0

Overview

The LM4040DIM3-5.0 is a precision micropower shunt voltage reference from Texas Instruments, providing a fixed reverse breakdown voltage of 5 V. It operates within an industrial temperature range of -40°C to +85°C and features a maximum initial accuracy of ±1% at 25°C. The device supports a wide operating current range from 65 μA to 15 mA with a maximum temperature coefficient of 150 ppm/°C. Packaged in a compact SOT-23 format, it eliminates the need for external stabilizing capacitors while tolerating capacitive loads.

Feature Summary

• Eliminates the need for external stabilizing capacitors
• Tolerates capacitive loads without stability issues
• Utilizes bandgap reference curvature correction for stable performance

Applications

• Portable, battery-powered equipment
• Data acquisition systems
• Instrumentation
• Process controls
• Precision audio components

Procurement Notes

Verify that the specific ordering suffix matches the required tolerance grade (D-grade) and package type (SOT-23). Confirm the manufacturer designation aligns with Texas Instruments specifications. Ensure the component meets the necessary industrial temperature requirements for your application environment before finalizing procurement.

Selection Notes

Select this component when space constraints require a sub-miniature surface-mount package like SOT-23. It is suitable for applications needing a fixed 5 V reference with moderate precision. Consider the D-grade tolerance if higher accuracy grades are not required. Verify that the operating current range fits within the system's power budget.

Part Context

This part belongs to the LM4040-N series of precision micropower shunt voltage references. The series offers various fixed voltages and packages including SC70 and TO-92. The LM4040-N-Q1 variant provides automotive qualification. This specific model represents the standard industrial grade version optimized for general-purpose precision referencing.

Replacement Considerations

Check for availability of LM4040DIM3X-5.0/NOPB as a potential equivalent. Verify pinout compatibility and thermal characteristics against alternative shunt references.