LM4128DMF-3.0

Voltage Reference Overview

The LM4128DMF-3.0 is a micropower series voltage reference manufactured by Texas Instruments, housed in a SOT-23-5 surface-mount package. It provides a nominal output voltage of 3.0 V with an initial accuracy of 1%. The device operates within a temperature range of -40°C to +125°C and features a maximum shunt current of 20 mA. It supports a maximum input voltage of 6 V and draws a typical operating supply current of 60 µA.

Voltage Reference Feature Summary

• Provides stable precision voltage reference performance in a compact SOT-23-5 footprint
• Designed for low-power applications with micropower consumption characteristics
• Capable of handling high shunt currents up to 20 mA for improved load regulation

Voltage Reference Applications

• Portable battery-powered instrumentation systems
• Data acquisition and measurement circuits
• Microcontroller analog-to-digital converter (ADC) references

Voltage Reference Procurement Notes

Verify the specific suffix configuration against official datasheets to ensure compatibility with required accuracy grades and temperature ranges. Confirm that the SOT-23-5 package dimensions match the target PCB layout constraints. Cross-reference the manufacturer part number with authorized distributors to validate authenticity and traceability before procurement.

Voltage Reference Selection Notes

Select this component when a 3.0 V reference with 1% initial accuracy is required in space-constrained designs. Consider the 60 µA quiescent current for battery life calculations. Ensure the application does not exceed the 20 mA shunt current limit or the 6 V maximum input voltage specification during operation.

Voltage Reference Part Context

This device belongs to the LM4128 family of micropower series voltage references from Texas Instruments. The family offers various fixed output voltages and accuracy grades, all sharing similar low-power operational characteristics and the SOT-23-5 package form factor for easy integration into modern electronic designs.

Voltage Reference Replacement Considerations

LM4128DMF-3.0/NOPB serves as a direct equivalent variant within the same product line.