LM4050QAEM3X2.5/NOPB

Voltage Reference Overview

The LM4050QAEM3X2.5/NOPB is a micropower shunt voltage reference manufactured by Texas Instruments, designed for precision applications requiring stable DC voltage levels. It operates within an extended temperature range of -40°C to +125°C and features a fixed output voltage of 2.5V with an initial accuracy of ±0.1%. The device exhibits a temperature coefficient of 50 ppm/°C and supports a maximum cathode current of 15 mA while maintaining low quiescent current consumption. Packaged in a compact SOT-23-3 surface-mount format, it meets AEC-Q100 automotive qualification standards, ensuring reliability in demanding environments.

Voltage Reference Feature Summary

• Automotive-grade qualification compliant with AEC-Q100 standards for enhanced reliability
• High precision performance with ±0.1% initial accuracy and low noise characteristics
• Micropower operation enabling efficient energy usage in battery-powered systems

Voltage Reference Applications

• Automotive electronic systems requiring certified voltage references
• Portable instrumentation utilizing battery power sources
• Data acquisition systems needing high stability

Voltage Reference Procurement Notes

Verify the specific suffix 'NOPB' confirms lead-free compliance and RoHS status as per the manufacturer's datasheet. Confirm the 'QAE' designation aligns with required automotive grade specifications. Ensure the SOT-23-3 package footprint matches the PCB design constraints. Check for any recent Product Change Notifications regarding manufacturing site or material updates.

Voltage Reference Selection Notes

Select this component when automotive certification (AEC-Q100) is mandatory alongside high precision requirements. The ±0.1% accuracy suits applications where tighter tolerances than standard 0.5% parts are needed. Consider the 15 mA max current limit for load driving capabilities. The SOT-23-3 package offers space efficiency for dense circuit boards compared to larger through-hole alternatives.

Voltage Reference Part Context

This part belongs to the LM4050-N/-Q1 series of micropower shunt voltage references from Texas Instruments. It shares functional similarities with other variants in the family but is distinguished by its specific 2.5V output, ±0.1% accuracy grade, and automotive qualification. It serves as a precision reference element within broader power management integrated circuits.

Voltage Reference Replacement Considerations

LM4050QAEM3-2.5/NOPB