LM4050BIX3-5.0-T

Voltage Reference Overview

The LM4050BIX3-5.0-T is a precision micropower shunt voltage reference manufactured by Analog Devices Inc./Maxim Integrated. It provides a fixed reverse breakdown voltage of 5.0V with an initial accuracy of 0.2%. The device features a maximum temperature coefficient of 50ppm/°C, guaranteed over the industrial temperature range of -40°C to +125°C. It operates within a shunt current range of 60µA to 15mA and utilizes a compact SC-70-3 surface-mount package.

Voltage Reference Feature Summary

• Provides stable reference voltage via two-terminal shunt mode operation
• Ensures high precision through laser-trimmed internal resistors
• Maintains stability across wide operating currents without external capacitors
• Delivers low noise performance for sensitive analog circuits

Voltage Reference Applications

• Portable battery-powered instrumentation
• Data acquisition systems requiring precise voltage references
• Handheld meters and test equipment
• Medical devices with space constraints

Voltage Reference Procurement Notes

Verify the manufacturer designation carefully, as Maxim Integrated products are now under Analog Devices Inc. Confirm the specific suffix indicates the SC-70 package and tape-and-reel delivery format. Ensure the grade matches the required 0.2% accuracy specification for your design. Check for any lead-free or RoHS compliance markings if environmental regulations apply to your assembly process.

Voltage Reference Selection Notes

Select this component when a small footprint is critical, as the SC-70 package is significantly smaller than standard SOT-23 alternatives. Choose this part if the design requires a 5.0V reference with tight tolerance and low drift over temperature. Consider the minimum operating current of 60µA to ensure proper regulation in low-power standby modes. Verify that the load capacitance requirements do not necessitate additional stabilization components.

Voltage Reference Part Context

This component belongs to the LM4050 family of precision micropower shunt voltage references. The series offers multiple fixed output voltages including 1.225V, 2.048V, 2.500V, 3.000V, 3.3V, 4.096V, and 5.000V. The 'B' suffix typically denotes the 0.2% accuracy grade, while 'IX3' specifies the SC-70 package and reel packaging configuration.

Voltage Reference Replacement Considerations

LM4050BIM3X-5.0 is a similar shunt reference in the SOT-23 package with comparable electrical characteristics. LM4050CEX3-5.0 offers a wider temperature coefficient but lower accuracy. Verify pinout compatibility and thermal performance when substituting packages.