MCP1501T-45E/CHY

Overview

The MCP1501T-45E/CHY is a buffered voltage reference from Microchip Technology, offering a nominal output of 4.5V with an initial accuracy of 0.1%. It operates within a supply voltage range of 4.7V to 5.5V and maintains a maximum temperature coefficient of 50 ppm/°C across the -40°C to +125°C operating range. The device features a typical operating current of 140 μA and can source or sink up to 20 mA. It is housed in a 6-lead SOT-23 package.

Feature Summary

• Capable of sourcing and sinking 20 mA of load current for robust drive capability.
• Utilizes chopper-based amplifiers to minimize drift and offset errors.
• Includes a digital shutdown pin for low-power management.
• Features internal curvature compensation for high precision.

Applications

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

Procurement Notes

Verify the specific suffix 'CHY' against official documentation to confirm it denotes the 6-lead SOT-23 package variant. Ensure the input supply voltage meets the minimum requirement of 4.7V for proper regulation. Confirm AEC-Q100 qualification status if automotive compliance is required for the project.

Selection Notes

Select this component when a stable 4.5V reference is needed with moderate current drive capabilities. Consider the 6-lead SOT-23 package for space-constrained designs. Evaluate the 50 ppm/°C temperature coefficient against system thermal requirements. Verify that the 4.7V minimum input voltage aligns with the available power rails.

Part Context

This part belongs to the MCP1501 family of high-precision buffered voltage references. The family includes various fixed output voltages and packages. The 'T' indicates tape and reel packaging, while 'CHY' specifies the SOT-23-6 package configuration. Other variants include SOIC-8 and WDFN-8 packages.

Replacement Considerations

MCP1501-45E/SN (SOIC-8 package)

FAQ

What is the function of the SHDN pin?

The SHDN pin is a digital input that places the device in a low-current shutdown state when driven low. The device must be powered up before using this feature.

Is an output capacitor required for stability?

No, an output capacitor is not required for stability. However, it may be added optionally for noise filtering or as a charge reservoir for switching loads.