LM4050CIX3-3.3

Voltage Reference Overview

The LM4050CIX3-3.3 is a precision two-terminal shunt voltage reference manufactured by Analog Devices Inc./Maxim Integrated. It provides a fixed reverse breakdown voltage of 3.3V with an initial accuracy of ±0.5%. 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 current range from 60µA to 15mA and utilizes an ultra-small 3-pin SC-70 surface-mount package measuring 1.8mm x 1.8mm.

Voltage Reference Feature Summary

• Ultra-small 3-pin SC-70 surface-mount package for space-critical applications
• Laser-trimmed resistors ensure high initial accuracy
• Capable of tolerating capacitive loads without external stabilizing capacitors

Voltage Reference Applications

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

Voltage Reference Procurement Notes

Verify the specific suffix 'C' confirms the 0.5% accuracy grade and 50ppm/°C temperature coefficient. Confirm the 'IX3' designation corresponds to the SC-70 package type. Ensure the component meets RoHS compliance requirements for your assembly process. Cross-reference the manufacturer part number with official distributor catalogs to validate availability and authenticity before procurement.

Voltage Reference Selection Notes

Select this component when a compact footprint is required alongside stable voltage regulation in portable devices. The 3.3V output suits digital logic systems requiring precise reference levels. The wide operating current range allows flexibility in biasing circuits while maintaining low power consumption suitable for battery-operated systems.

Voltage Reference Part Context

This component belongs to the LM4050/LM4051 family of micropower shunt voltage references. The series offers multiple fixed reverse breakdown voltages including 1.225V, 2.048V, 2.500V, 3.000V, 3.3V, 4.096V, and 5.000V. The family is characterized by bandgap technology and is designed for applications demanding high precision in small form factors.

Voltage Reference Replacement Considerations

LM4050CEX3-3.3+T: Same voltage and accuracy but in SOT-23 package. LM4050AEX3-3.3+T: Higher accuracy (0.1%) in SC-70 package.