LM4128BMF-2.0

Voltage Reference Overview

The LM4128BMF-2.0 is a precision micropower shunt voltage reference manufactured by Texas Instruments. It provides a fixed 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 an operating temperature range from -40°C to +125°C. The component is housed in a compact SOT-23-5 surface-mount package.

Voltage Reference Feature Summary

• Provides stable 2.048 V reference output with high initial accuracy
• Operates with low quiescent current for power efficiency
• Maintains performance across extended industrial temperature ranges
• Utilizes compact SOT-23-5 packaging for space-constrained designs

Voltage Reference Applications

• Portable instrumentation requiring precise voltage references
• Battery-powered measurement systems
• Data acquisition systems
• Microcontroller analog-to-digital converter references

Voltage Reference Procurement Notes

Verify the specific suffix 'BMF' corresponds to the required accuracy grade (±0.2%) and temperature coefficient (75 ppm/°C). Confirm the '-2.0' designation matches the 2.048 V output requirement. Ensure the SOT-23-5 package type aligns with PCB layout constraints. Check RoHS compliance status as indicated in official documentation.

Voltage Reference Selection Notes

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

Voltage Reference Part Context

The LM4128 series consists of precision micropower shunt voltage references designed for applications requiring stable reference voltages in small packages. This specific variant belongs to the BMF sub-series, indicating defined accuracy and temperature characteristics within the broader LM4128 family offered by Texas Instruments.

Voltage Reference Replacement Considerations

LM4128BMF-2.0/NOPB: Direct equivalent with lead-free compliance.