LM4050BIM3-2.1-T

Voltage Reference Overview

The LM4050BIM3-2.1-T is a precision two-terminal shunt-mode bandgap voltage reference manufactured by Analog Devices Inc./Maxim Integrated. It provides a fixed reverse breakdown voltage of 2.048V with an initial accuracy of 0.1% and a maximum temperature coefficient of 50ppm/°C guaranteed over the -40°C to +125°C operating range. The device operates within a wide current range from 60µA to 15mA, features low output noise of 28µVRMS (10Hz to 10kHz), and utilizes an ultra-small 3-pin SC70 surface-mount package.

Voltage Reference Feature Summary

• Ultra-small 3-pin SC70 surface-mount package for space-critical applications
• High initial accuracy of 0.1% ensured by laser-trimmed resistors
• Stable operation without external stabilizing capacitors across wide current ranges
• Capable of tolerating capacitive loads while maintaining stability

Voltage Reference Applications

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

Voltage Reference Procurement Notes

Verify the specific suffix against official manufacturer documentation to confirm exact tolerance grades and packaging configurations. Ensure compatibility with required thermal management standards for the target environment. Cross-reference ordering information for AEC-Q100 qualification status if automotive compliance is mandatory. Confirm lead times and availability directly with authorized distributors as stock levels fluctuate.

Voltage Reference Selection Notes

Select this component when high precision and compact form factor are prioritized in portable or industrial designs. The 0.1% accuracy grade suits applications requiring tight voltage regulation without complex calibration. Evaluate the 50ppm/°C temperature coefficient against ambient thermal variations. Consider the 60µA minimum operating current for low-power standby modes in battery-operated devices.

Voltage Reference Part Context

Part of the LM4050/LM4051 family of micropower shunt voltage references. Designed as a drop-in replacement for larger packages like SOT-23, offering 50% smaller footprint. Manufactured using BICMOS technology for robust performance. Available in multiple fixed voltage options including 1.225V, 2.500V, and 5.000V variants.

Voltage Reference Replacement Considerations

LM4050BIM3-2.1+ is a compatible variant within the same series. Verify pinout compatibility and thermal characteristics before substitution. Check for equivalent accuracy grades and temperature coefficients to ensure circuit performance remains unchanged.