LM4050BIX3-4.1-T

Voltage Reference Overview

The LM4050BIX3-4.1-T is a precision two-terminal shunt voltage reference manufactured by Analog Devices Inc./Maxim Integrated. It provides a fixed reverse breakdown output voltage of 4.096V with an initial accuracy of 0.2%. The device features a maximum temperature coefficient of 50ppm/°C, guaranteed over an operating temperature range of -40°C to +125°C. It operates within a wide shunt current range from 60µA to 15mA and utilizes a compact SOT-23 surface-mount package.

Voltage Reference Feature Summary

• Precision bandgap voltage reference with laser-trimmed resistors for high initial accuracy
• Capable of handling capacitive loads without requiring external stabilizing capacitors
• Low dynamic impedance ensures stable reverse breakdown voltage across wide current ranges
• Ultra-small footprint suitable for space-critical portable applications

Voltage Reference Applications

• Portable battery-powered equipment
• Notebook computers
• Cell phones
• Industrial process controls
• Automotive systems

Voltage Reference Procurement Notes

Verify the specific suffix 'BIX3' against official manufacturer documentation to confirm package type (SOT-23) and grade (B). Ensure compatibility with existing PCB footprints designed for SC-70 or SOT-23 packages. Confirm RoHS compliance status through the latest datasheet revision. Validate that the 4.096V output matches system requirements before procurement.

Voltage Reference Selection Notes

Select this component when a 4.096V reference with 0.2% accuracy is required in a small SOT-23 package. Consider the 50ppm/°C temperature coefficient for thermal stability needs. Ensure the design allows for a minimum cathode current of 60µA and a maximum of 15mA. Verify that no external capacitor is needed for stability in the target application circuit.

Voltage Reference Part Context

This part belongs to the LM4050/LM4051 family of micropower shunt voltage references. The family offers multiple fixed reverse breakdown voltages including 1.225V, 2.048V, 2.500V, 3.000V, 3.3V, 4.096V, and 5.000V. The devices are available in both SC-70 and SOT-23 packages, with the latter being 50% larger than the former.

Voltage Reference Replacement Considerations

LM4050AIM3X-4.1/NOPB: Offers 0.1% accuracy and 50ppm/°C TC in SOT-23. LM4050CEX3-4.1: Available in SC-70 package with similar electrical characteristics.