LM4050QCEM3X2.5/NOPB

Voltage Reference Overview

The LM4050QCEM3X2.5/NOPB is an automotive-grade micropower shunt voltage reference from Texas Instruments, featuring a fixed 2.5 V output with 0.5% initial accuracy and a 50 ppm/°C temperature coefficient. It operates within a -40°C to +125°C range in a SOT-23-3 package. The device draws a maximum cathode current of 65 µA and supports up to 15 mA load current. It holds AEC-Q100 qualification for robust automotive reliability.

Voltage Reference Feature Summary

• Automotive-grade reliability certified under AEC-Q100 standards
• Micropower operation with low quiescent current consumption
• Precision shunt regulation with stable 2.5 V output
• Compact surface-mount SOT-23-3 packaging

Voltage Reference Applications

• Automotive electronic control units requiring precise voltage references
• Battery-powered systems needing low standby current
• Data acquisition channels utilizing analog-to-digital conversion
• Portable instrumentation circuits demanding high stability

Voltage Reference Procurement Notes

Verify the specific suffix 'X' indicates tape-and-reel packaging configuration. Confirm AEC-Q100 qualification status matches project requirements. Check RoHS compliance documentation for final assembly verification. Ensure the 0.5% accuracy grade suits the application tolerance. Validate the SOT-23-3 footprint against PCB design constraints.

Voltage Reference Selection Notes

Select this component when automotive qualification is mandatory alongside low power consumption. Compare the 0.5% accuracy against higher precision options like the LM4050QAEM3 series if tighter tolerances are needed. Consider the 65 µA cathode current for battery life calculations. Evaluate the SOT-23-3 thermal performance for enclosed environments.

Voltage Reference Part Context

This part belongs to the LM4050 family of micropower shunt voltage references. It shares core electrical characteristics with non-automotive variants but includes enhanced testing for automotive durability. The 'Q' prefix denotes automotive qualification, while 'CEM3' specifies the case style and lead finish. The 'X' typically indicates reel packaging.

Voltage Reference Replacement Considerations

LM4050CEM3X2.5/NOPB offers identical electrical specs without automotive qualification. LM4050QAEM3X2.5/NOPB provides improved 0.1% accuracy while maintaining automotive grade. LM4050QBEM3X2.5/NOPB offers 0.2% accuracy as an intermediate option.