LM4050CIM3-5.0

Voltage Reference Overview

The LM4050CIM3-5.0 is a precision micropower shunt voltage reference manufactured by Texas Instruments, designed for applications requiring stable voltage regulation in compact form factors. It operates within an extended industrial temperature range of -40°C to +85°C and utilizes a surface-mount SOT-23-3 package. The device provides a fixed output voltage of 5V with an initial accuracy tolerance of ±0.5%. It features a maximum shunt current capability of 15 mA and maintains a low noise profile of 93 µVrms across the 10 Hz to 10 kHz frequency band. The component exhibits a temperature coefficient of 50 ppm/°C, ensuring consistent performance under varying thermal conditions.

Voltage Reference Feature Summary

• Provides a fixed 5V reference output with high initial accuracy suitable for precision measurement systems.
• Operates as a micropower shunt regulator, minimizing energy consumption in battery-powered or space-constrained designs.
• Delivers low-noise performance to maintain signal integrity in sensitive analog circuits.
• Engineered for reliable operation across a wide industrial temperature range without significant drift.

Voltage Reference Applications

• Portable instrumentation and handheld measurement devices
• Battery-powered equipment requiring efficient power management
• Data acquisition systems needing stable reference voltages
• Industrial process control loops

Voltage Reference Procurement Notes

Verify the specific suffix and package variant when sourcing, as availability may vary by region. Confirm RoHS compliance status and check for end-of-life notifications from the manufacturer. Ensure the selected distributor offers genuine components with traceable documentation. Review datasheet revisions to confirm parameter consistency before finalizing procurement decisions.

Voltage Reference Selection Notes

Select this component when a fixed 5V reference is required with moderate precision and low power consumption. Consider the SOT-23-3 package for space-limited PCB layouts. Evaluate the 50 ppm/°C temperature coefficient against environmental operating conditions. Compare noise specifications with other series references if ultra-low noise is critical for the application.

Voltage Reference Part Context

This part belongs to the LM4050-N family of precision micropower shunt voltage references. It shares functional similarities with the LM4040 series but offers improved accuracy and lower noise characteristics. The device serves as a drop-in replacement for older generation references in many standard circuit topologies, providing enhanced performance in a compact footprint.

Voltage Reference Replacement Considerations

LM4050CEM3X-5.0/NOPB is a verified alternative within the same product family offering similar electrical characteristics and pinout compatibility.