LM4050CEM3-4.1/NOPB

Voltage Reference Overview

The LM4050CEM3-4.1/NOPB is a precision micropower shunt voltage reference from Texas Instruments, featuring a fixed reverse breakdown voltage of 4.096 V. It operates within an extended temperature range of -40°C to +125°C and utilizes a compact SOT-23 package. The device guarantees an initial accuracy of ±0.5% at 25°C and maintains a maximum temperature coefficient of 50 ppm/°C across the operating range. It supports a minimum operating current of 73 μA and a maximum cathode current of 15 mA.

Voltage Reference Feature Summary

• Eliminates the need for external stabilizing capacitors while ensuring stability with any capacitive load
• Utilizes fuse and Zener-zap reverse breakdown voltage trim during wafer sort for high accuracy
• Bandgap reference temperature drift curvature correction ensures stable performance over wide currents and temperatures

Voltage Reference Applications

• Portable, battery-powered equipment
• Data acquisition systems
• Instrumentation
• Process control
• Precision audio components

Voltage Reference Procurement Notes

Verify the specific suffix 'NOPB' indicates lead-free status and confirms compliance with RoHS directives as per manufacturer documentation. Ensure the ordering code matches the required C-grade tolerance and extended temperature rating. Confirm package availability and check for any process change notifications that may affect long-term supply or pin configurations before finalizing procurement plans.

Voltage Reference Selection Notes

Select this component when space constraints require a sub-miniature SOT-23 footprint without compromising reference stability. It is suitable for designs requiring a fixed 4.096 V output with low noise characteristics. Consider the minimum operating current requirements of the circuit to ensure it remains above the specified 73 μA threshold for proper regulation under all operating conditions.

Voltage Reference Part Context

This part belongs to the LM4050-N family of precision micropower shunt voltage references. The family offers various fixed voltage options including 2.048 V, 2.5 V, 5 V, 8.192 V, and 10 V. The LM4050 series is designed for applications demanding high accuracy and low power consumption in compact surface-mount packages.

Voltage Reference Replacement Considerations

LM4050CIM3X-4.1/NOPB

Voltage Reference FAQ

Does the LM4050CEM3-4.1/NOPB require an output capacitor for stability?

No, the LM4050-N design eliminates the need for an external stabilizing capacitor while ensuring stability with any capacitive load.

What is the maximum operating current for this device?

The maximum operating current (cathode current) is 15 mA.