LM4050QCIM3X2.5/NOPB

Voltage Reference Overview

The LM4050QCIM3X2.5/NOPB is a micropower shunt voltage reference from Texas Instruments, featuring a fixed 2.5 V output in a compact SOT-23 package. It offers an initial accuracy of 0.1% and a temperature coefficient of 50 ppm/°C. The device operates within a -40°C to +125°C range and supports a maximum shunt current of 15 mA. Qualified under AEC-Q100 standards for automotive reliability, it provides stable precision regulation with low power consumption suitable for space-constrained applications.

Voltage Reference Feature Summary

• AEC-Q100 qualified for automotive-grade reliability
• Micropower operation with low quiescent current
• High initial accuracy of 0.1%
• Compact three-pin SOT-23 surface-mount packaging

Voltage Reference Applications

• Automotive data acquisition systems
• Portable battery-powered instrumentation
• Precision analog-to-digital converter references
• Temperature sensing circuits

Voltage Reference Procurement Notes

Verify the specific suffix 'QC' indicates the required 0.1% accuracy grade and automotive qualification. Confirm the 'X2.5' designation matches the 2.5 V output requirement. Ensure the SOT-23-3 package aligns with PCB layout constraints. Check for RoHS compliance status as indicated in official documentation.

Voltage Reference Selection Notes

Select this component when high precision and automotive reliability are required in a small footprint. Compare against lower accuracy grades if cost is critical. Consider thermal management requirements given the small package size. Verify input voltage headroom exceeds the 2.5 V reference by sufficient margin for proper shunt regulation.

Voltage Reference Part Context

This part belongs to the LM4050 family of micropower shunt voltage references. It shares the core architecture with other variants differing in output voltage and accuracy grades. The family is designed for applications requiring stable reference voltages with minimal power draw. The Q-series denotes automotive qualification extending the operating temperature range.

Voltage Reference Replacement Considerations

LM4050QBIM3X2.5/NOPB: Similar automotive shunt reference but with 0.5% accuracy. LM4050AIM3X2.5/NOPB: Industrial grade variant with 0.1% accuracy but different temperature qualification.