LM4050BIM3-3.0-T

Voltage Reference Overview

The LM4050BIM3-3.0-T is a precision micropower shunt voltage reference manufactured by Analog Devices Inc./Maxim Integrated. It provides a fixed reverse breakdown voltage of 3.0V with an initial accuracy of 0.2% and a maximum temperature coefficient of 50ppm/°C. The device operates within a wide current range from 60µA to 15mA and features low output noise. It is housed in a compact SOT-23-3 surface-mount package and supports an operating temperature range from -40°C to +125°C.

Voltage Reference Feature Summary

• Ultra-small 3-pin SC70/SOT-23-3 surface-mount package for space-critical designs
• High precision with 0.2% initial accuracy and 50ppm/°C temperature coefficient
• Wide operating current range from 60µA to 15mA ensures stability across varying loads
• Capable of tolerating capacitive loads without requiring external stabilizing capacitors

Voltage Reference Applications

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

Voltage Reference Procurement Notes

Verify the specific suffix 'T' indicates tape-and-reel packaging when sourcing. Confirm that the 'B' grade corresponds to the required 0.2% initial accuracy and 50ppm/°C temperature coefficient specifications. Ensure the manufacturer designation matches Analog Devices or Maxim Integrated as the component lineage has transitioned between these entities. Check for AEC-Q100 qualification if automotive reliability standards are mandatory for the application.

Voltage Reference Selection Notes

Select this component when a stable 3.0V reference is needed in a minimal footprint. The 0.2% accuracy grade offers a balance between high precision and cost-effectiveness compared to tighter tolerance variants. The wide current range allows for efficient power management in battery-operated devices. Verify that the SOT-23-3 package dimensions fit the PCB layout constraints and that the thermal performance meets the requirements for the intended operating environment.

Voltage Reference Part Context

This part belongs to the LM4050/LM4051 family of precision two-terminal shunt-mode bandgap voltage references. The series is characterized by its sub-miniature size, being approximately 50% smaller than comparable SOT-23 packages. The family offers multiple fixed reverse breakdown voltages including 1.225V, 2.048V, 2.500V, 3.000V, 3.3V, 4.096V, and 5.000V to suit various circuit requirements.

Voltage Reference Replacement Considerations

LM4050BEM3-3.0+T: Similar shunt reference with 0.2% accuracy in SOT-23-3 package. LM4050AEX3-3.0+T: Higher precision variant with 0.1% accuracy in SC-70 package.