LM4050CIM3X-10

Voltage Reference Overview

The LM4050CIM3X-10 is a precision micropower shunt voltage reference from Texas Instruments, featuring a fixed reverse breakdown voltage of 10 V. It operates within an industrial temperature range of -40°C to +85°C and utilizes a compact SOT-23 surface-mount package. The device specifies an initial accuracy tolerance of ±0.5% at 25°C and maintains a maximum temperature coefficient of 50 ppm/°C across the operating range. Electrical characteristics include a minimum operating current of 110 μA and a maximum operating current of 15 mA.

Voltage Reference Feature Summary

• Eliminates the need for external stabilizing capacitors while ensuring stability with any capacitive load
• Utilizes fuse and Zener-zap reverse breakdown voltage trim during wafer sort to ensure high accuracy
• Incorporates bandgap reference temperature drift curvature correction for stable performance over wide temperature ranges

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 (±0.5%) and X-package designation. Ensure the application circuit provides sufficient headroom above the 10 V breakdown voltage and limits current to the 15 mA maximum rating. Confirm that the industrial temperature range (-40°C to +85°C) meets the environmental requirements of the target system.

Voltage Reference Selection Notes

Select this component when a fixed 10 V reference is required in space-constrained designs using SOT-23 packaging. The C-grade offers a balance of cost and precision with ±0.5% initial accuracy. Consider the extended temperature range variants if operation beyond +85°C is necessary, or A/B grades if tighter initial tolerances are critical for the application.

Voltage Reference Part Context

This device belongs to the LM4050-N family of precision micropower shunt voltage references. The family provides multiple fixed voltage options including 2.048 V, 2.5 V, 4.096 V, 5 V, 8.192 V, and 10 V. These references are designed for applications requiring small footprints and low power consumption without compromising on long-term stability or noise performance.

Voltage Reference Replacement Considerations

LM4050BIM3X-10/NOPB

Voltage Reference FAQ

Does the LM4050CIM3X-10 require an output capacitor for stability?

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

What is the maximum operating current for this device?

The maximum operating current is 15 mA.