LM4050BIX3-3.3-T

Voltage Reference Overview

The LM4050BIX3-3.3-T is a precision micropower 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 ±0.2%. The device features a maximum temperature coefficient of 50ppm/°C and operates over a wide temperature range from -40°C to +125°C. It utilizes a subminiature SC-70 (SOT-323) surface-mount package, measuring 1.8mm x 1.8mm. The component supports a shunt current range from 60µA to 15mA and exhibits low dynamic impedance without requiring external stabilizing capacitors.

Voltage Reference Feature Summary

• Ultra-small 3-pin SC-70 surface-mount package for space-critical designs
• Laser-trimmed resistors ensure high initial accuracy
• Capable of stable operation across a wide operating current range
• Inherently stable with any capacitive load

Voltage Reference Applications

• Portable battery-powered instrumentation
• Data acquisition systems
• Handheld meters
• Automotive electronics

Voltage Reference Procurement Notes

Verify the manufacturer designation on the datasheet, as the LM4050 series is produced by both Maxim Integrated and Texas Instruments. Confirm that the specific suffix matches the required accuracy grade and package type. Ensure the component meets RoHS compliance requirements for your assembly process. Cross-reference the part number with official distributor catalogs to confirm availability and authenticity before procurement.

Voltage Reference Selection Notes

Select this component when a compact footprint is required alongside precision voltage referencing. The SC-70 package offers significantly smaller dimensions compared to standard SOT-23 packages. Consider the ±0.2% accuracy and 50ppm/°C temperature coefficient for applications demanding stability over varying thermal conditions. Ensure the circuit design accommodates the minimum operating current of 60µA for proper regulation.

Voltage Reference Part Context

This component belongs to the LM4050/LM4051 family of precision two-terminal shunt-mode bandgap 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. These devices are designed for applications where size and power consumption are critical constraints.

Voltage Reference Replacement Considerations

LM4050BEX3-3.3+T

Voltage Reference FAQ

Does the LM4050BIX3-3.3-T require an external stabilizing capacitor?

No, the LM4050BIX3-3.3-T does not require an external stabilizing capacitor while ensuring stability with any capacitive loads.

What is the operating temperature range for this voltage reference?

The specifications are guaranteed over a temperature range of -40°C to +125°C.