LM4050QAEM3-5.0/NOPB

Voltage Reference Overview

The LM4050QAEM3-5.0/NOPB is a micropower shunt voltage reference manufactured by Texas Instruments, designed for precision applications requiring stable output voltages. It features a fixed 5.0 V output with an initial accuracy of ±0.1% and a temperature coefficient of 50 ppm/°C. The device operates within a wide temperature range from -40°C to +125°C and supports a maximum shunt current of 15 mA. Packaged in a compact SOT-23-3 surface-mount case, it meets AEC-Q100 automotive qualification standards. Its low cathode current consumption makes it suitable for battery-powered systems where power efficiency is critical.

Voltage Reference Feature Summary

• AEC-Q100 qualified for automotive reliability requirements
• High precision with ±0.1% initial accuracy tolerance
• Micropower operation with low cathode current consumption
• Wide operating temperature range from -40°C to +125°C

Voltage Reference Applications

• Automotive electronic control units requiring precise voltage references
• Battery-powered instrumentation and measurement devices
• Data acquisition systems needing stable analog references
• Portable medical equipment with strict power constraints

Voltage Reference Procurement Notes

Verify the specific suffix 'QAEM3' indicates automotive grade and SOT-23-3 packaging. Confirm the '-5.0' denotes the 5V output variant. Check for RoHS compliance status as per latest datasheet revisions. Ensure compatibility with existing PCB footprints for SOT-23-3 components. Validate supply chain authenticity through authorized distributors only.

Voltage Reference Selection Notes

Select this component when high accuracy and automotive qualification are required. Compare against LM4050CEM3 variants if industrial grade suffices. Consider noise specifications for sensitive analog circuits. Evaluate thermal management needs given the small package size. Verify input voltage ranges exceed the reference output plus dropout requirements.

Voltage Reference Part Context

Part of the LM4050-N/-Q1 family of micropower shunt voltage references. Designed to replace older LM4040 series components with improved accuracy and lower power consumption. Commonly used in conjunction with ADCs and DACs in mixed-signal systems. Offers better performance than standard zener diodes in precision applications.

Voltage Reference Replacement Considerations

LM4050QAEM3X5.0/NOPB may serve as a direct pin-compatible alternative with similar specifications. LM4050CEM3-5.0/NOPB offers comparable performance but lacks automotive qualification. Verify electrical parameters match exactly before substitution.