LM4050CEM3X-2.5

Voltage Reference Overview

The LM4050CEM3X-2.5 is a micropower shunt voltage reference manufactured by Texas Instruments, housed in an SOT-23-3 package. It provides a fixed output voltage of 2.5 V with an initial accuracy of ±0.5% and a temperature coefficient of 50 ppm/°C. The device supports a maximum shunt current of 15 mA and operates within a temperature range of -40°C to +125°C. It belongs to the LM4050-N series and is designed for surface-mount installation.

Voltage Reference Feature Summary

• Micropower operation suitable for battery-powered applications
• High precision with low temperature drift characteristics
• Compact SOT-23-3 surface-mount packaging

Voltage Reference Applications

• Portable instrumentation requiring stable reference voltages
• Battery-operated measurement systems
• Data acquisition circuits needing precise voltage references

Voltage Reference Procurement Notes

Verify component authenticity through authorized distributors or direct manufacturer channels. Confirm RoHS compliance status and check for specific manufacturing lot codes if required for traceability. Ensure the ordering suffix matches the exact reel or cut-tape configuration needed for your assembly process. Validate that the part number corresponds to the C-grade specifications rather than other performance grades within the family.

Voltage Reference Selection Notes

Select this component when a 2.5 V reference with ±0.5% accuracy is sufficient for the application. Consider the LM4050QAEM3X-2.5/NOPB variant if higher precision (±0.1%) or automotive qualification (AEC-Q100) is required. Evaluate the thermal management requirements given the SOT-23-3 package size and the operating temperature range up to 125°C. Ensure the circuit design accommodates the minimum cathode current specified in the datasheet for proper regulation.

Voltage Reference Part Context

This device is part of the LM4050-N series of micropower shunt voltage references from Texas Instruments. It serves as a cost-effective solution for applications requiring moderate precision without the need for automotive-grade qualification. The series offers various output voltages and accuracy grades, allowing designers to balance performance and cost effectively in power management and signal conditioning circuits.

Voltage Reference Replacement Considerations

For equivalent performance, consider the LM4050CEM3-2.5/NOPB. For higher accuracy, the LM4050QAEM3X-2.5/NOPB is available. Automotive applications may require the LM4050QAIM3X-2.5/NOPB. Verify pinout compatibility and electrical specifications before substitution.