LM4050BIM3-4.1+T

Voltage Reference Overview

The LM4050BIM3-4.1+T is a precision micropower shunt voltage reference manufactured by Analog Devices Inc. under the Maxim Integrated brand. It provides a fixed output voltage of 4.096 V with an initial accuracy of 0.2%. The device features a maximum temperature coefficient of 50 ppm/°C and supports a shunt current range up to 15 mA. It operates within a temperature range of -40°C to +85°C and is housed in a compact SOT-23-3 surface-mount package.

Voltage Reference Feature Summary

• Provides stable reverse breakdown voltage without requiring external stabilizing capacitors
• Ensures stability across wide operating currents and temperatures due to low dynamic impedance
• Utilizes laser-trimmed resistors for high initial accuracy

Voltage Reference Applications

• Space-critical applications requiring small footprint
• Battery-powered systems utilizing micropower characteristics
• Precision measurement circuits requiring stable reference voltages

Voltage Reference Procurement Notes

Verify the specific suffix '+T' indicates reel packaging when sourcing. Confirm that the 'B' grade corresponds to the required 0.2% initial accuracy for your design. Ensure the manufacturer designation matches Analog Devices or Maxim Integrated as per the component marking. Check RoHS compliance documentation if environmental regulations apply to your assembly process.

Voltage Reference Selection Notes

Select this component when a 4.096 V reference is needed in a subminiature SC70 or SOT-23 form factor. It is suitable for designs requiring 50 ppm/°C stability over the industrial temperature range. Consider the 60µA minimum operating current to ensure proper regulation during low-power states. Verify that the load capacitance requirements are met, although no external capacitor is strictly required for stability.

Voltage Reference Part Context

This part belongs to the LM4050/LM4051 family of two-terminal shunt voltage references. These devices are designed as alternatives to larger packages, offering 50% smaller size compared to standard SOT-23 versions. The family includes multiple fixed reverse breakdown voltages and accuracy grades ranging from 0.1% to 0.5%, catering to various precision analog circuit needs.

Voltage Reference Replacement Considerations

LM4050AIM3-4.1/NOPB offers higher accuracy (0.1%) but may have different thermal characteristics. TL4050B41IDBZR is a Texas Instruments equivalent in SOT-23-3 with similar 4.096V output and 0.2% accuracy. Verify pinout compatibility and temperature range specifications before substitution.