LM4050AIM3-5.0

Voltage Reference Overview

The LM4050AIM3-5.0 is a precision micropower shunt voltage reference manufactured by Analog Devices Inc./Maxim Integrated. It provides a fixed output voltage of 5.0V with an initial accuracy of 0.1%. The device features a maximum temperature coefficient of 50ppm/°C and supports a shunt current range up to 15mA. It operates within a temperature range of -40°C to +125°C and is housed in a compact SOT-23-3 surface-mount package.

Voltage Reference Feature Summary

• Laser-trimmed resistors ensure high initial accuracy for stable performance.
• Low dynamic impedance maintains reverse breakdown voltage accuracy across wide operating currents.
• No external stabilizing capacitor is required, ensuring stability with any capacitive load.

Voltage Reference Applications

• Space-critical applications requiring small footprint solutions
• Portable battery-powered equipment due to micropower characteristics
• Precision measurement systems requiring stable reference voltages

Voltage Reference Procurement Notes

Verify the manufacturer designation as Analog Devices Inc./Maxim Integrated for this specific part number. Confirm the package type is SOT-23-3 and the output voltage is exactly 5.0V. Ensure the temperature coefficient matches the 50ppm/°C specification for your application requirements.

Voltage Reference Selection Notes

Select this component when a 5.0V reference with 0.1% accuracy is needed in a small SOT-23 package. It is suitable for designs requiring operation from -40°C to +125°C without external stabilization capacitors. Consider the 15mA max shunt current capability for load driving needs.

Voltage Reference Part Context

This device belongs to the LM4050/LM4051 series of precision two-terminal shunt-mode bandgap 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. It is designed for applications where space and power consumption are critical constraints.

Voltage Reference Replacement Considerations

Public confirmed substitute part numbers include LM4050AIM3X-5.0/NOPB from Texas Instruments. Verify pinout compatibility and electrical specifications before substitution.