LM4040BIM3-5.0

Overview

The LM4040BIM3-5.0 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 ±0.2%. The device supports a wide operating current range from 74 μA to 15 mA and exhibits a low temperature coefficient of 100 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 fuse and Zener-zap reverse breakdown voltage trim for high accuracy

Applications

• Portable, battery-powered equipment
• Data acquisition systems
• Instrumentation
• Process controls
• Automotive applications

Procurement Notes

Verify the specific suffix 'B' indicates the ±0.2% tolerance grade and 'M3' denotes the SOT-23 package configuration. Confirm that the '-5.0' designation corresponds to the 5 V output voltage. Ensure the component meets the required AEC-Q100 automotive qualification if intended for automotive use, as indicated by the series documentation.

Selection Notes

Select this component when space-critical designs require a stable voltage reference in a sub-miniature surface-mount package. It is suitable for applications demanding high precision with minimal power consumption. Consider the 74 μA minimum operating current requirement at 5 V to ensure proper biasing in low-power circuits.

Part Context

This part belongs to the LM4040-N family of precision micropower shunt voltage references. The family offers various fixed reverse breakdown voltages including 2.048 V, 2.5 V, 3 V, 4.096 V, 5 V, 8.192 V, and 10 V. The LM4040-N series is designed for applications requiring high accuracy and low drift over temperature.

Replacement Considerations

LM4040BIM3X-5.0/NOPB