LM4050BEM3-10

Voltage Reference Overview

The LM4050BEM3-10 is a precision micropower shunt voltage reference from Texas Instruments, offering a fixed reverse breakdown voltage of 10 V. It operates within an extended temperature range of -40°C to 125°C and features a maximum temperature coefficient of 50 ppm/°C. The device provides a typical wideband noise of 150 μVrms (10 Hz to 10 kHz) and supports a maximum operating current of 15 mA with a minimum of 100 μA. Packaged in a compact SOT-23 format, it eliminates the need for external stabilizing capacitors.

Voltage Reference Feature Summary

• Eliminates the need for external stabilizing capacitors while ensuring stability with any capacitive load
• Utilizes fuse and Zener-zap reverse breakdown voltage trim during wafer sort for high accuracy
• Bandgap reference temperature drift curvature correction ensures stable performance across temperatures

Voltage Reference Applications

• Portable, Battery-Powered Equipment
• Data Acquisition Systems
• Instrumentation
• Process Control
• Precision Audio Components

Voltage Reference Procurement Notes

Verify the specific suffix 'B' indicates the B-grade tolerance level and 'EM3' denotes the SOT-23 package configuration. Confirm that the '-10' designation corresponds to the 10 V output variant. Ensure compatibility with the extended temperature range requirements (-40°C to 125°C) as specified in the datasheet electrical characteristics for the 10-V option.

Voltage Reference Selection Notes

Select this component when space-critical applications require a precise 10 V reference without external compensation components. Consider the B-grade initial accuracy and the 50 ppm/°C temperature coefficient for thermal stability needs. Evaluate the 100 μA minimum operating current against system power constraints and verify that the SOT-23 package dimensions fit the PCB layout.

Voltage Reference Part Context

This part belongs to the LM4050-N family of precision micropower shunt voltage references manufactured by Texas Instruments. The family includes various fixed voltage options and grades (A, B, C) packaged in the sub-miniature SOT-23 surface-mount package. It is designed for applications requiring high accuracy and low power consumption in compact form factors.

Voltage Reference Replacement Considerations

Public confirmed substitute part numbers are not provided in the source material.