LM4050CIM3X-5.0

Voltage Reference Overview

The LM4050CIM3X-5.0 is a micropower shunt voltage reference from Texas Instruments, featuring a fixed reverse breakdown voltage of 5 V with an initial accuracy tolerance of ±0.5%. It operates within an industrial temperature range of -40°C to +85°C and utilizes a compact SOT-23 surface-mount package. The device requires no external stabilizing capacitor for stability with capacitive loads. Key electrical specifications include a maximum temperature coefficient of 50 ppm/°C, a typical wideband noise of 93 µVrms (10 Hz to 10 kHz), and a minimum operating current of 80 µA.

Voltage Reference Feature Summary

• Eliminates the need for an external stabilizing capacitor while ensuring stability with any capacitive load.
• Utilizes fuse and Zener-zap reverse breakdown voltage trim during wafer sort to ensure high accuracy.
• Bandgap reference temperature drift curvature correction ensures stable performance over a wide range of currents and temperatures.

Voltage Reference Applications

• Portable, battery-powered equipment
• Data acquisition systems
• Instrumentation
• Process control
• Product testing

Voltage Reference Procurement Notes

Verify the specific suffix 'CIM3X' against the manufacturer's datasheet to confirm the C-grade tolerance, industrial temperature range, and reel packaging format. Ensure the ordering part number matches the exact pinout and thermal characteristics required for your PCB layout. Cross-reference the component status to confirm availability and check for any recent process change notifications that may affect long-term supply.

Voltage Reference Selection Notes

Select this component when space constraints require a sub-miniature SOT-23 package. It is suitable for applications needing a fixed 5 V reference without output capacitor requirements. Consider the ±0.5% initial accuracy and 50 ppm/°C temperature coefficient for industrial environments. Verify that the minimum operating current of 80 µA aligns with the system's quiescent current budget.

Voltage Reference Part Context

This component belongs to the LM4050-N family of precision micropower shunt voltage references manufactured by Texas Instruments. The family offers various fixed voltage options and grades (A, B, C) with different tolerances. The LM4050-N series is designed for applications requiring high precision in small form factors, often replacing larger through-hole references in modern compact electronics designs.

Voltage Reference Replacement Considerations

LM4050BIM3X-5.0/NOPB

Voltage Reference FAQ

Does the LM4050CIM3X-5.0 require an external capacitor?

No, the LM4050-N design eliminates the need for an external stabilizing capacitor while ensuring stability with any capacitive load.

What is the operating temperature range for the CIM grade?

The CIM grade operates within the industrial temperature range of -40°C to +85°C.