LM4050BEM3X-10/NOPB

Voltage Reference Overview

The LM4050BEM3X-10/NOPB is a precision micropower shunt voltage reference manufactured by Texas Instruments, originally part of the National Semiconductor portfolio. It provides a fixed reverse breakdown voltage of 10V with an initial accuracy of 0.2% and a temperature coefficient of 50 ppm/°C. The device operates within a current range of 60µA to 15mA and functions across a temperature range of -40°C to +85°C. Packaged in a compact SOT-23-3 surface-mount format, it requires no external stabilizing capacitor.

Voltage Reference Feature Summary

• Provides stable reference voltage without requiring external stabilizing capacitors for any capacitive load
• Features laser-trimmed resistors ensuring high initial accuracy over wide operating conditions
• Designed for space-critical applications with a subminiature three-pin package footprint

Voltage Reference Applications

• Precision analog-to-digital converter (ADC) reference sources
• Data acquisition systems requiring stable voltage benchmarks
• Portable instrumentation powered by battery supplies

Voltage Reference Procurement Notes

Verify the manufacturer designation carefully, as the component history involves transitions between National Semiconductor and Texas Instruments. Confirm the specific suffix 'NOPB' indicates lead-free compliance and RoHS adherence. Ensure the ordering quantity aligns with the standard reel packaging requirements specified by the distributor.

Voltage Reference Selection Notes

Select this component when a 10V fixed reference is required in a small form factor. Consider the 50 ppm/°C temperature coefficient against application thermal stability needs. Evaluate the 0.2% initial accuracy tolerance relative to system error budgets. Verify that the SOT-23-3 package dimensions fit the available PCB real estate constraints.

Voltage Reference Part Context

This device belongs to the LM4050-N series of micropower shunt voltage references. The family offers various fixed output voltages including 1.225V, 2.048V, 2.5V, 3.0V, 3.3V, 4.096V, and 5.0V. The LM4050 variant specifically targets applications needing higher voltage references while maintaining low power consumption and high precision in a minimal package size.

Voltage Reference Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation.