LM4040CIM3-5.0-TR

Overview

The LM4040CIM3-5.0-TR is a precision micropower shunt voltage reference manufactured by Microchip Technology, providing a fixed reverse-breakdown voltage of 5.000V at an operating current of 100 µA and +25°C. It features C-grade initial accuracy with a maximum tolerance of ±0.5% (±25 mV) and a typical average temperature coefficient of ±30 ppm/°C. The device operates within a temperature range of -40°C to +85°C, supports a maximum reverse current of 15 mA, and utilizes a 3-pin SOT-23 surface-mount package.

Feature Summary

• Bandgap reference curvature correction ensures stable voltage accuracy across wide operating temperatures and currents.
• Capable of tolerating capacitive loads without requiring an output capacitor for stability.
• Designed for space-critical applications utilizing the subminiature SOT-23 surface-mount package.

Applications

• Battery-powered equipment
• Data acquisition systems
• Instrumentation
• Process control
• Precision audio components

Procurement Notes

Verify that the ordering suffix '-TR' corresponds to tape-and-reel packaging as specified in the datasheet. Confirm the 'C' grade designation aligns with the required ±0.5% initial accuracy and ±30 ppm/°C temperature coefficient specifications. Ensure the component matches the Microchip Technology manufacturer identification rather than other vendors producing similar part numbers.

Selection Notes

Select this component when a fixed 5.000V reference is required in a compact SOT-23 footprint. The C-grade specification provides a balance of precision and cost-effectiveness for industrial applications. Verify that the minimum operating current requirement of approximately 74 µA fits within the system's power budget and that the load regulation characteristics meet the circuit's dynamic requirements.

Part Context

This component belongs to the LM4040/LM4041 family of precision micropower shunt voltage references. The LM4040 series specifically offers fixed breakdown voltages including 2.500V, 4.096V, and 5.000V. These devices are engineered for low-power designs where high accuracy and small physical size are critical constraints.

Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation.

FAQ

Does the LM4040 require an external output capacitor?

No, the LM4040 does not require an output capacitor and can tolerate capacitive loads directly.

What is the maximum operating current for the LM4040-5.0?

The maximum operating current for the LM4040-5.0 is 15 mA.