LM4050BEM3-10

Voltage Reference Overview

The LM4050BEM3-10 is a precision micropower shunt voltage reference manufactured by National Semiconductor, now part of Texas Instruments. It provides a fixed reverse breakdown voltage of 10V with an initial accuracy of 0.2%. The device features a maximum temperature coefficient of 50ppm/°C guaranteed over the -40°C to +125°C range. It operates within a wide current range from 60µA to 15mA and utilizes a SOT-23-3 surface-mount package.

Voltage Reference Feature Summary

• Precision bandgap voltage reference with laser-trimmed resistors for high initial accuracy
• Capable of maintaining stable reverse breakdown voltage across a wide operating current range
• No external stabilizing capacitor required while ensuring stability with any capacitive loads

Voltage Reference Applications

• Space-critical applications requiring compact surface-mount packaging
• Portable battery-powered equipment due to micropower operation
• Data acquisition systems requiring precise voltage references
• Calibration circuits needing low drift performance

Voltage Reference Procurement Notes

Verify component authenticity through authorized distributors or direct manufacturer channels. Confirm lot codes and date codes against current production status. Check for RoHS compliance documentation as manufacturing sources may vary between Maxim Integrated and Texas Instruments origins. Ensure storage conditions meet moisture sensitivity level requirements prior to assembly.

Voltage Reference Selection Notes

Select this component when a 10V fixed reference is required in a small footprint. Consider the 50ppm/°C temperature coefficient for thermal stability needs. Evaluate the 60µA minimum operating current against system quiescent power constraints. Compare noise specifications if low-noise performance is critical for the specific analog signal path.

Voltage Reference Part Context

This part belongs to the LM4050/LM4051 family of precision two-terminal shunt-mode bandgap voltage references. The series offers multiple fixed reverse breakdown voltages including 1.225V, 2.048V, 2.500V, 3.000V, 3.3V, 4.096V, and 5.000V. The B-grade variant specifically denotes 0.2% initial accuracy. The device is available in both SC70 and SOT-23 packages.

Voltage Reference Replacement Considerations

LM4050BEM3-10/NOPB serves as a direct lead-free replacement variant within the same functional specification. Cross-reference with TL4050 series parts from Texas Instruments for pin-compatible alternatives with similar electrical characteristics. Verify package dimensions and marking codes when substituting between Maxim Integrated and Texas Instruments supply chains.