LM4128CMF-3.0/NOPB

Voltage Reference Overview

The LM4128CMF-3.0/NOPB is a micropower series voltage reference manufactured by Texas Instruments, housed in a SOT-23-5 surface-mount package. It provides a fixed output voltage of 3.0 V with an initial accuracy of ±0.5%. The device operates within a temperature range of -40°C to +125°C and features a temperature coefficient of 100 ppm/°C. Maximum input voltage is rated at 6 V, with a maximum shunt current of 20 mA and a supply current of approximately 100 µA.

Voltage Reference Feature Summary

• Provides stable fixed voltage reference output suitable for precision applications
• Operates with low power consumption for battery-powered systems
• Designed for compact surface-mount integration

Voltage Reference Applications

• Portable instrumentation requiring precise voltage references
• Battery-operated measurement devices
• Data acquisition systems needing stable reference sources

Voltage Reference Procurement Notes

Verify the specific suffix 'NOPB' indicates lead-free and RoHS compliance status as per manufacturer documentation. Confirm the 'C' grade designation corresponds to the required ±0.5% initial accuracy tolerance for your design. Ensure the SOT-23-5 footprint matches your PCB layout constraints before finalizing procurement orders.

Voltage Reference Selection Notes

Select this component when a 3.0 V reference with ±0.5% accuracy is required in a small SOT-23-5 package. Consider the 100 ppm/°C temperature coefficient for thermal stability needs. Compare against higher accuracy grades like 'B' or 'A' if tighter tolerances are necessary, or lower cost options if precision requirements are less stringent.

Voltage Reference Part Context

This part belongs to the LM4128 family of micropower series voltage references from Texas Instruments. The family offers various fixed output voltages and accuracy grades. The CMF variant specifically denotes the commercial temperature range and standard accuracy level within the SOT-23-5 form factor, distinguishing it from automotive qualified or higher precision counterparts.

Voltage Reference Replacement Considerations

LM4128BMF-3.0/NOPB offers improved accuracy. LM4128AMF-3.0/NOPB provides even higher precision. LM4128DMF-3.0/NOPB is another option within the same package.