MCP1501T-30E/CHY

Overview

The MCP1501T-30E/CHY is a buffered voltage reference from the MCP1501 series, manufactured by Microchip Technology. It provides a fixed nominal output voltage of 3.000 V with an initial accuracy of ±0.1%. The device operates within a supply voltage range of 3.2 V to 5.5 V and features a maximum temperature coefficient of 50 ppm/°C across the -40°C to +125°C operating temperature range. It utilizes a low-drift bandgap architecture with chopper-based amplifiers to minimize drift. The typical operating current is 140 μA, and it can source or sink up to 20 mA of load current.

Feature Summary

• Buffered output capable of sourcing and sinking 20 mA of current for high drive capability.
• Low-drift bandgap design utilizing chopper-based amplifiers to reduce temperature-dependent offsets.
• Integrated shutdown pin (SHDN) for active low digital control of power consumption.
• Internal feedback loop on SOT-23 package ensures accurate output voltage regulation.

Applications

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

Procurement Notes

Verify the specific suffix CHY against official Microchip documentation to confirm package type and tape-and-reel specifications. Ensure the ordering part number matches the required automotive qualification status if applicable, as AEC-Q100 qualification is explicitly stated only for the 6-Lead SOT-23 package variant in the datasheet.

Selection Notes

Select this component when a stable 3V reference with moderate precision (0.1%) is required. It is suitable for designs needing significant output drive current (±20 mA). Consider the SOT-23-6 package for space-constrained PCB layouts. Verify that the minimum input voltage requirement of 3.2 V aligns with the system power supply rails.

Part Context

This part belongs to the MCP1501 family of high-precision buffered voltage references. The family includes variants with different fixed output voltages ranging from 1.024V to 5.000V. The MCP1501 series is designed for applications requiring low noise and stability, offering both SOT-23, SOIC, and WDFN package options depending on the specific voltage variant selected.

Replacement Considerations

MCP1501T-30E/SN: Same electrical performance but in an 8-Lead SOIC package.

FAQ

How does the MCP1501 achieve low temperature drift?

It uses a second-order temperature compensated bandgap circuit combined with chopper-based amplifiers to effectively reduce drift to near zero.

What is the function of the SHDN pin?

The SHDN pin is a digital input that places the device into a low-power Shutdown mode when held low; the device must be powered up before using this feature.