MCP1502T-33E/CHY

Overview

The MCP1502T-33E/CHY is a buffered voltage reference with a nominal output of 3.3V, 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 3.5V to 5.5V, 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 minimizes drift and offset for high precision.
• Capable of sourcing and sinking up to 20 mA of load current.
• Includes an active-low digital shutdown control pin.

Applications

• Precision data acquisition systems
• Electric vehicle battery management systems
• High-resolution data converters

Procurement Notes

Verify the specific suffix CHY against official Microchip documentation to confirm the exact tape-and-reel packaging configuration and moisture sensitivity level. Ensure the ordering code matches the required automotive qualification grade if AEC-Q100 compliance is mandatory for the target application environment.

Selection Notes

Select this component when a stable 3.3V reference with high current drive is required. The SOT-23-6 package suits space-constrained designs. Verify that the minimum input voltage requirement of 3.5V aligns with the system power rail to ensure proper regulation and dropout performance under all operating conditions.

Part Context

This part belongs to the MCP1502 family of high-precision buffered voltage references. It shares architectural similarities with the MCP1501 but offers enhanced noise performance through chopper stabilization. The family supports multiple fixed output voltages within a compact surface-mount footprint suitable for portable and industrial electronics.

Replacement Considerations

The MCP1501 series serves as a comparable alternative within the same product line. Verify pin compatibility and check if the slightly higher temperature coefficient of the MCP1501 meets the design requirements before substitution.