MCP1501T-18E/CHY

Overview

The MCP1501T-18E/CHY is a buffered voltage reference from the MCP1501 series, manufactured by Microchip Technology. It provides a fixed output voltage of 1.8V with an initial accuracy of ±0.1%. The device operates within a supply voltage range of 2.0V to 5.5V 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 component is housed in a 6-lead SOT-23 package and includes a shutdown pin for power management.

Feature Summary

• Buffered output capable of sourcing and sinking up to 20 mA of current
• Low typical operating current consumption of 140 μA
• Integrated shutdown control via active-low digital input
• Chopper-based amplifier architecture reduces temperature-dependent offsets

Applications

• Precision data acquisition systems
• High-resolution data converters
• Medical equipment applications
• Industrial controls
• Battery-powered devices

Procurement Notes

Verify the specific suffix 'CHY' corresponds to the 6-Lead SOT-23 package configuration as documented in official Microchip datasheets. Confirm that the ordering code matches the required automotive qualification status if applicable, as package-specific qualifications may vary. Ensure compatibility with the specified 1.8V output variant before procurement.

Selection Notes

Select this component when a stable 1.8V reference is required with high initial accuracy and low noise. The SOT-23-6 package is suitable for space-constrained designs. Consider the 50 ppm/°C temperature coefficient for applications requiring stability over wide thermal ranges. Verify input voltage requirements fall between 2.0V and 5.5V for proper operation.

Part Context

This part belongs to the MCP1501 family of high-precision buffered voltage references. The family offers multiple voltage variants including 1.024V, 1.25V, 2.5V, 3.3V, and others. The MCP1501 series is designed for applications demanding low drift and high accuracy, utilizing curvature-compensated bandgap technology.

Replacement Considerations

Other MCP1501 variants (e.g., MCP1501T-25E/CHY) share the same package and functionality but provide different fixed output voltages. Direct substitution requires matching the required reference voltage level.