LM4040CIM3X-4.1/NOPB

Overview

The LM4040CIM3X-4.1/NOPB is a micropower shunt voltage reference from Texas Instruments, providing a fixed output of 4.1 V. It operates within a temperature range of -40°C to +85°C and features an initial accuracy of ±0.5%. The device draws a typical quiescent current of 45 µA and supports a maximum shunt current of 15 mA. It utilizes a SOT-23-3 surface-mount package and exhibits a temperature coefficient of 100 ppm/°C.

Feature Summary

• Micropower operation with low quiescent current consumption
• High precision fixed voltage reference output
• Compact SOT-23-3 surface-mount packaging

Applications

• Portable battery-powered instrumentation
• Data acquisition systems
• Handheld meters

Procurement Notes

Verify the specific suffix 'G4' for lead-free compliance if required by design specifications, as distributor listings may vary between LM4040CIM3X-4.1/NOPB and LM4040CIM3X-4.1/G4. Confirm RoHS status directly with the manufacturer datasheet before finalizing procurement to ensure alignment with environmental regulations.

Selection Notes

Select this component when a stable 4.1 V reference is needed in space-constrained designs. The ±0.5% initial accuracy suits general-purpose applications requiring moderate precision. Ensure the operating voltage exceeds the minimum input requirement while staying within the maximum limit to maintain regulation stability.

Part Context

This part belongs to the LM4040-N series of precision micropower shunt references. It serves as a compact alternative to larger packages, offering similar electrical performance in a SOT-23-3 footprint. The series is designed for applications where power efficiency and board space are critical constraints.

Replacement Considerations

LM4040CIM3-4.1/NOPB is a non-tape-and-reel variant of the same electrical specification.