LM4050AEM3-5.0/NOPB

Voltage Reference Overview

The LM4050AEM3-5.0/NOPB is a micropower shunt voltage reference manufactured by Texas Instruments, providing a fixed output of 5 V. It features an initial accuracy of 0.1% 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. Packaged in a surface-mount SOT-23-3 case, it draws a cathode current of 65 µA with noise of 41 µVrms from 10 Hz to 10 kHz.

Voltage Reference Feature Summary

• Provides stable precision voltage regulation via shunt topology for circuit stability.
• Maintains high accuracy across wide industrial temperature ranges without external trimming.
• Operates at micropower levels suitable for battery-powered or energy-efficient designs.

Voltage Reference Applications

• Portable instrumentation requiring precise analog-to-digital conversion references
• Battery-operated systems needing low quiescent current voltage standards
• Industrial control circuits utilizing microcontrollers with voltage reference inputs

Voltage Reference Procurement Notes

Verify the complete part number including suffixes such as NOPB and reel specifications against official Texas Instruments documentation. Confirm RoHS compliance status and manufacturing origin details directly from the datasheet. Ensure the specific package variant matches design requirements before procurement.

Voltage Reference Selection Notes

Select this component when a 5 V reference with 0.1% initial accuracy is required in a compact SOT-23-3 package. Consider the 50 ppm/°C temperature coefficient for thermal stability needs. Evaluate the 65 µA operating current against system power budgets compared to higher current alternatives.

Voltage Reference Part Context

This device belongs to the LM4050-N series of precision micropower shunt voltage references. It serves as a compact alternative to larger packages while maintaining high precision. The series is designed for applications demanding stable reference voltages in space-constrained electronic systems.

Voltage Reference Replacement Considerations

LM4050AEM3-2.5/NOPB offers identical performance characteristics with a 2.5 V output instead of 5 V. LM4050BIM3-5.0/NOPB provides similar functionality but with 0.2% initial accuracy rather than 0.1%. Verify pinout compatibility and thermal specifications when substituting.