LM4050BEM3-5.0

Voltage Reference Overview

The LM4050BEM3-5.0 is a precision micropower shunt voltage reference manufactured by National Semiconductor, now part of Texas Instruments. It provides a fixed output voltage of 5.0 V with an initial accuracy of 0.2% and a temperature coefficient of 50 ppm/°C. The device operates within a junction temperature range of -40°C to +125°C and supports a maximum shunt current of 15 mA. It is housed in a surface-mount SOT-23-3 package.

Voltage Reference Feature Summary

• Provides stable reference voltage without requiring external stabilizing capacitors for stability with any capacitive loads.
• Features laser-trimmed resistors to ensure high initial accuracy across the operating temperature range.
• Designed for space-critical applications utilizing a subminiature three-pin surface-mount package.

Voltage Reference Applications

• Portable instrumentation circuits requiring precise voltage references.
• Battery-powered systems where low power consumption is critical.
• Data acquisition systems needing stable analog-to-digital converter references.

Voltage Reference Procurement Notes

Verify that the component originates from National Semiconductor or its successor Texas Instruments. Confirm the specific suffix indicates the 5.0V output variant and SOT-23-3 packaging. Check for RoHS compliance status as manufacturing processes may vary between legacy and current production runs.

Voltage Reference Selection Notes

Select this component when a 5.0V reference with 0.2% accuracy is required in a compact footprint. Ensure the application current remains within the 60µA to 15mA operational window. Consider the 50 ppm/°C temperature drift if operating across extreme environmental conditions.

Voltage Reference Part Context

This device belongs to the LM4050 family of two-terminal shunt voltage references. It utilizes bandgap technology to maintain performance over wide temperature ranges. The series includes multiple fixed breakdown voltages and accuracy grades to suit various design constraints.

Voltage Reference Replacement Considerations

LM4050BIM3-5.0/NOPB

Voltage Reference FAQ

Does the LM4050BEM3-5.0 require an external capacitor for stability?

No, the device does not require an external stabilizing capacitor and ensures stability with any capacitive load.

What is the operating current range for this reference?

The device guarantees stable operation with a shunt current capability ranging from 60µA to 15mA.