LM4050BEM3-5.0

Voltage Reference Overview

The LM4050BEM3-5.0 is a micropower shunt voltage reference manufactured by Texas Instruments, designed for precision applications requiring stable DC voltage levels. It operates within a temperature range of -40°C to +125°C and features an initial accuracy of 0.1% with a temperature coefficient of 50 ppm/°C. The device provides a fixed output voltage of 5 V and supports a maximum shunt current of 15 mA. Packaged in a compact SOT-23-3 surface-mount case, it draws a typical cathode current of 80 µA, making it suitable for space-constrained designs.

Voltage Reference Feature Summary

• Provides high-precision voltage regulation with tight initial accuracy tolerances
• Operates effectively across extended industrial temperature ranges
• Features low power consumption suitable for battery-powered systems

Voltage Reference Applications

• Portable instrumentation requiring stable reference voltages
• Battery-powered measurement devices
• Data acquisition systems needing precise analog references

Voltage Reference Procurement Notes

Verify component authenticity through authorized distributors or direct manufacturer channels due to potential availability constraints. Confirm specific suffix variations match design requirements as package and tolerance options may differ. Check for end-of-life notifications or discontinuance notices prior to finalizing procurement plans to ensure long-term supply stability.

Voltage Reference Selection Notes

Select this component when a fixed 5 V reference with 0.1% accuracy is required in a small footprint. Ensure the application current does not exceed the 15 mA maximum shunt limit. Consider thermal management if operating near the upper temperature boundary. Verify that the SOT-23-3 package dimensions fit the PCB layout constraints.

Voltage Reference Part Context

This part belongs to the LM4050-N series of micropower shunt voltage references from Texas Instruments. The series offers various output voltages and accuracy grades packaged in SOT-23 form factors. It serves as a drop-in replacement for older National Semiconductor equivalents in existing designs requiring stable, low-current voltage references.

Voltage Reference Replacement Considerations

LM4050BEM3-5.0/NOPB is a verified equivalent variant within the same product family.