LM4050BIX3-2.5

Voltage Reference Overview

The LM4050BIX3-2.5 is a precision micropower shunt voltage reference manufactured by Analog Devices Inc./Maxim Integrated. It provides a fixed output voltage of 2.5V with an initial accuracy of 0.2%. The device features a maximum temperature coefficient of 30ppm/°C and operates within a wide current range from 60µA to 15mA. It is housed in a compact SC-70 (SOT-323) surface-mount package and supports an operating temperature range from -40°C to +125°C.

Voltage Reference Feature Summary

• Ultra-small 3-pin SC-70 package for space-critical applications
• Low dynamic impedance ensuring stable reverse breakdown voltage accuracy
• No external stabilizing capacitor required for stability

Voltage Reference Applications

• Portable instrumentation
• Battery-powered systems
• Data acquisition systems

Voltage Reference Procurement Notes

Verify the specific suffix 'IX3' against official manufacturer documentation, as standard Maxim Integrated part numbers typically utilize 'EM3' or 'IM3' designators for SOT-23 or SC-70 packages respectively. Confirm RoHS compliance status and ensure the supplier source is authorized to prevent counterfeit components. Cross-reference the exact part number with the latest datasheet revision history.

Voltage Reference Selection Notes

Select this component when a 2.5V reference with 0.2% initial accuracy and 30ppm/°C temperature stability is required in a minimal footprint. Ensure the application load current remains within the 60µA to 15mA operational window. Verify that the SC-70 package dimensions fit the PCB layout constraints compared to larger SOT-23 alternatives.

Voltage Reference Part Context

This component belongs to the LM4050 family of two-terminal shunt voltage references. The family offers multiple fixed reverse breakdown voltages including 1.225V, 2.048V, 3.000V, and 5.000V. The 'B' grade indicates tighter accuracy specifications compared to the 'C' grade, while the 'I' suffix denotes the SC-70 package variant.

Voltage Reference Replacement Considerations

LM4050CEX3-2.5+T offers similar functionality but with 0.5% accuracy and 50ppm/°C temperature coefficient. LM4050AEX3-2.5+T provides higher 0.1% accuracy. Verify pinout compatibility and thermal performance when substituting.