MCP1502T-45E/CHY

Overview

The MCP1502T-45E/CHY is a buffered voltage reference with a nominal output of 4.5V, housed in a 6-lead SOT-23 package. It features an initial accuracy of 0.1% and a maximum temperature coefficient of 7 ppm/°C across the -40°C to +125°C range. The device operates on supply voltages from 4.7V to 5.5V, drawing a typical current of 140 µA. It supports ±20 mA load currents and includes a low-active shutdown pin.

Feature Summary

• Band gap architecture utilizing chopper-based amplifiers for low drift and noise reduction
• Capable of sourcing and sinking up to 20 mA of output current
• Integrated active-low digital shutdown control

Applications

• Precision data acquisition systems
• Electric vehicle battery management systems
• High-resolution data converters
• Medical equipment applications
• Industrial controls

Procurement Notes

Verify the specific suffix CHY against the manufacturer's official documentation to confirm the tape-and-reel packaging configuration. Ensure the ordering code matches the required automotive qualification standards if applicable. Cross-reference the datasheet revision to validate all electrical parameters before finalizing procurement specifications.

Selection Notes

Select this component when a stable 4.5V reference is required within a tight space constraint provided by the SOT-23 form factor. It is suitable for designs needing high precision (0.1%) and low thermal drift. Consider the minimum operating voltage requirement of 4.7V to ensure compatibility with the system power rail.

Part Context

This part belongs to the MCP1502 family of high-precision buffered voltage references manufactured by Microchip Technology. The family offers ten distinct voltage variants ranging from 1.024V to 5.000V, sharing identical performance characteristics regarding temperature stability and drive capability.

Replacement Considerations

The MCP1501 serves as a related alternative offering buffered performance. Verify that the specific voltage variant and package type of the replacement match the design requirements.