MCP1501T-20E/RW

Overview

The MCP1501T-20E/RW is a buffered voltage reference from the MCP1501 series, manufactured by Microchip Technology. It provides a fixed output voltage of 2.048 V with an initial accuracy of ±0.1%. The device operates within a supply voltage range of 2.25 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 an 8-lead WDFN (2x2 mm) package in tape and reel format.

Feature Summary

• Capable of sourcing and sinking up to 20 mA of load current for robust drive capability.
• Utilizes chopper-based amplifier architecture to minimize drift and offset errors.
• Includes a dedicated shutdown pin for active low digital control of power consumption.

Applications

• Precision data acquisition systems
• High-resolution analog-to-digital converter references
• Medical equipment applications
• Industrial controls
• Battery-powered devices

Procurement Notes

Verify the specific suffix 'RW' corresponds to the WDFN-8 tape and reel packaging configuration as documented in the official datasheet. Confirm that the 'E' designation aligns with the specified industrial temperature range requirements for your application environment before finalizing procurement orders.

Selection Notes

Select this component when a stable 2.048 V reference is required with high precision and moderate drive strength. Ensure the input supply voltage remains above the minimum threshold of 2.25 V for proper regulation. Consider the thermal resistance characteristics of the WDFN package if significant self-heating or high ambient temperatures are expected in the design.

Part Context

This part belongs to the MCP1501 family of high-precision buffered voltage references. The family offers various fixed output voltages and package options, including SOT-23, SOIC, and WDFN. The T-20 variant specifically denotes the 2.048 V output option, while the RW suffix indicates the specific reel packaging for surface mount assembly.

Replacement Considerations

Direct substitutes within the same family include MCP1501T-20E/SN (SOIC-8) or MCP1501T-20E/CHY (SOT-23-6). Verify pinout compatibility and package dimensions before substituting to ensure mechanical fit on the PCB.

FAQ

How does the MCP1501 handle capacitive loads?

The device can drive up to 10 nF of capacitive load directly. For larger capacitors, a series resistor must be used to maintain stability, as detailed in the transient response graphs.

What is the function of the FEEDBACK pin in the WDFN package?

In the WDFN package, the FEEDBACK pin should be connected to the OUT pin at the device. This allows the feedback loop to compensate for any IR-drop caused by PCB trace resistance between the device and the load.