LM4128BMF-2.0/NOPB

Voltage Reference Overview

The LM4128BMF-2.0/NOPB is a precision micropower series voltage reference manufactured by Texas Instruments, which acquired National Semiconductor. It provides a stable output voltage of 2.048 V with an initial accuracy of 0.2%. The device operates within a maximum input voltage of 6 V and supports a maximum shunt current of 20 mA. It features a temperature coefficient of 75 ppm/°C and functions reliably across a wide temperature range from -40°C to +125°C. Packaged in a compact SOT-23-5 surface-mount format, it is designed for applications requiring low power consumption and high stability.

Voltage Reference Feature Summary

• Delivers a precise 2.048 V reference output with 0.2% initial accuracy
• Operates efficiently with a maximum shunt current of 20 mA
• Maintains performance across a wide industrial temperature range
• Utilizes a compact SOT-23-5 surface-mount package

Voltage Reference Applications

• Portable instrumentation systems
• Battery-powered measurement devices
• Data acquisition systems
• Precision analog signal conditioning

Voltage Reference Procurement Notes

Verify the manufacturer designation as Texas Instruments due to the acquisition of National Semiconductor. Confirm the specific suffix indicates lead-free composition and RoHS compliance. Ensure the ordering part number matches the required 2.048 V output variant. Check for automotive qualification requirements if applicable, as standard versions differ from AEC-Q100 qualified parts.

Voltage Reference Selection Notes

Select this component when a fixed 2.048 V reference is required with tight initial accuracy. Consider the 75 ppm/°C temperature coefficient for thermal stability needs. Evaluate the 20 mA maximum shunt current against circuit load requirements. Compare against other LM4128 variants if different output voltages or accuracy grades are needed.

Voltage Reference Part Context

This device belongs to the LM4128 family of precision micropower series voltage references. The family offers various output voltages and accuracy grades packaged in small form factors. The LM4128 series is widely used in applications demanding stable reference voltages with minimal power consumption. The NOPB suffix denotes a lead-free and environmentally friendly product configuration.

Voltage Reference Replacement Considerations

LM4128BMF-2.0/NOPB is functionally equivalent to LM4128BMF-20/NOPB. Verify pinout compatibility and electrical specifications before substitution.