LM4040DIX3-5.0

Overview

The LM4040DIX3-5.0 is a micropower shunt voltage reference manufactured by Analog Devices Inc./Maxim Integrated, featuring a fixed output voltage of 5 V. It provides an initial accuracy of 1% and operates with a maximum temperature coefficient of 30 PPM/°C. The device supports a maximum shunt current of 15 mA and functions within a temperature range of -40°C to +85°C. Packaged in a compact SC-70-3 (SOT-23) format, it is designed for space-constrained applications requiring stable voltage regulation.

Feature Summary

• Micropower shunt topology optimized for low operating current consumption
• High precision performance with 1% initial accuracy at 25°C
• Low temperature coefficient ensuring stability across industrial temperatures
• Compact surface-mount packaging suitable for space-limited designs

Applications

• Portable battery-powered instrumentation
• Data acquisition systems
• Microprocessor supply monitoring
• Battery chargers

Procurement Notes

Verify the manufacturer designation as Analog Devices Inc./Maxim Integrated when sourcing this component. Confirm the package type is SC-70-3 and the output voltage is strictly 5.0 V. Ensure the suffix matches the specific revision required for your design. Cross-reference datasheets for thermal and electrical specifications before finalizing procurement.

Selection Notes

Select this part when a 5 V reference with 1% accuracy is required in a small footprint. It is suitable for applications where power consumption must be minimized due to its micropower characteristics. Consider the 30 PPM/°C temperature coefficient for environments with significant thermal variations. Verify that the 15 mA maximum shunt current meets the load requirements of the circuit.

Part Context

This component belongs to the LM4040 family of precision micropower shunt voltage references. The family offers various accuracy grades and output voltages, including 2.048 V, 2.5 V, 3.0 V, 4.096 V, and 5.0 V. The LM4040 series is known for its high stability and low noise, making it a standard choice for general-purpose voltage referencing in industrial and consumer electronics.

Replacement Considerations

LM4040DIX3-5.0+T is a verified equivalent part number from the same manufacturer line.