LM4040DIM3X-4.1/NOPB

Overview

The LM4040DIM3X-4.1/NOPB is a micropower shunt voltage reference from Texas Instruments, housed in a SOT-23-3 surface-mount package. It provides a fixed output voltage of 4.1 V with an initial accuracy of ±1%. The device operates within a temperature range of -40°C to +85°C and features a temperature coefficient of 150 ppm/°C. Key electrical specifications include a maximum cathode current of 15 mA and a minimum operating voltage of 4.1 V.

Feature Summary

• Micropower operation suitable for battery-powered applications
• Precision shunt regulation architecture
• Compact three-terminal surface-mount design

Applications

• Portable instrumentation circuits
• Battery-operated measurement systems
• General-purpose voltage reference sources

Procurement Notes

Verify the specific suffix 'DIM3X' against the manufacturer's latest documentation to confirm active status and exact tolerance grades. Ensure the 4.1V output variant matches the system requirement, as this series offers multiple voltage options. Confirm RoHS compliance and lead times directly with authorized distributors or the manufacturer before finalizing procurement plans.

Selection Notes

Select this component when a stable 4.1 V reference is required in space-constrained designs. The ±1% initial accuracy balances precision needs with cost efficiency. Verify that the 15 mA maximum cathode current meets the load requirements and that the 150 ppm/°C temperature coefficient is sufficient for the intended thermal environment.

Part Context

This part belongs to the LM4040-N family of precision micropower shunt references. The family utilizes a bandgap reference core to provide stable voltage outputs in small packages. The LM4040 series is designed for applications requiring low power consumption and high stability without the need for external components.

Replacement Considerations

LM4040CIM3X-4.1/NOPB: Offers tighter initial accuracy (±0.5%) but similar power characteristics.