MCP1502T-50E/CHY

Overview

The MCP1502T-50E/CHY is a buffered voltage reference with a nominal output of 5.0 V, 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 5.2 V to 5.5 V, drawing a typical current of 140 µA. It provides ±20 mA drive capability and includes a low-active shutdown pin.

Feature Summary

• Chopper-based amplifier architecture reduces drift and improves long-term stability
• Capable of sourcing and sinking up to 20 mA load current
• Integrated digital control for precise curvature compensation
• Active-low shutdown pin for power management

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 official Microchip documentation to confirm the tape-and-reel packaging configuration. Ensure the input supply voltage meets the minimum requirement of 5.2 V for proper regulation. Confirm AEC-Q100 Grade 1 qualification status if automotive reliability is required for the design.

Selection Notes

Select this component when a stable 5.0 V reference is needed with high drive capability. It is suitable for designs requiring low noise and minimal temperature drift. Consider the 5.2 V minimum input voltage constraint compared to lower-voltage options in the family. Evaluate thermal resistance requirements for the SOT-23 package under heavy load conditions.

Part Context

This part belongs to the MCP1502 series of high-precision buffered voltage references. It shares architectural similarities with the MCP1501 but offers higher output current capabilities. The family provides multiple voltage variants to accommodate different system requirements while maintaining consistent performance characteristics.

Replacement Considerations

MCP1502T-50E/MF

FAQ

What is the function of the SHDN pin?

The SHDN pin is an active-low digital input that places the device into a shutdown state, tri-stating the output driver.

How does the chopper-based amplifier affect performance?

It effectively reduces drift to zero by minimizing temperature-dependent offsets, significantly improving long-term drift performance.