LM4040C50ILP

Overview

The LM4040C50ILP is a precision micropower shunt voltage reference manufactured by Texas Instruments. It provides a fixed output voltage of 5V with an initial accuracy of ±0.5% and a maximum temperature coefficient of 100ppm/°C. The device operates within a cathode current range of 45μA to 15mA and features low output noise of 35μVRMS typical. It is housed in a TO-92 package with three pins, designed for through-hole installation. The component supports an operating temperature range from -40°C to +85°C.

Feature Summary

• Provides stable reference voltage with tight tolerance and low temperature drift
• Operates stably with all capacitive loads without requiring external capacitors
• Features low dynamic impedance and low noise characteristics

Applications

• Data-Acquisition Systems
• Energy Infrastructure
• Analog Input Module
• Field Transmitters
• Precision Audio

Procurement Notes

Verify the specific ordering suffix 'ILP' corresponds to the TO-92 package variant when sourcing. Confirm that the C-grade designation matches the required ±0.5% accuracy specification for the application. Ensure the industrial temperature range (-40°C to +85°C) aligns with the environmental conditions of the target system before finalizing procurement.

Selection Notes

Select this component when a fixed 5V reference is needed in a through-hole configuration. The C-grade offers a balance of cost and performance with ±0.5% accuracy. Consider the minimum operating current of 45μA to ensure proper biasing in low-power designs. Verify that the TO-92 package dimensions fit the available PCB space.

Part Context

The LM4040 series includes various grades (A, B, C, D) offering different accuracy levels and temperature coefficients. The LM4040C50ILP specifically belongs to the C-grade family, characterized by 0.5% initial accuracy and 100ppm/°C temperature coefficient. It is part of the broader LM4040 family which also includes SOT-23 and SC-70 packages for surface-mount applications.

Replacement Considerations

LM4040C50IDBZR

FAQ

Does the LM4040C50ILP require an output capacitor for stability?

No, the LM4040 is stable with all capacitive loads and does not require an external output capacitor for operation.

What is the recommended cathode current range for the LM4040C50ILP?

The device operates within a wide current range, typically from 45μA to 15mA.