MCP1640T-I/CHY

Voltage Regulators - DC DC Switching Regulators Overview

The MCP1640T-I/CHY is a synchronous step-up switching regulator manufactured by Microchip Technology. It operates with an input voltage range of 0.65V to 5.5V and provides an adjustable output voltage between 2V and 5.5V. The device delivers a maximum output current of 350mA at a fixed switching frequency of 500kHz. Key electrical specifications include a typical quiescent current of 19µA, line regulation of 0.01%/V, and load regulation of 0.01%. It is housed in a SOT-23-6 package and supports automotive applications.

Voltage Regulators - DC DC Switching Regulators Feature Summary

• Synchronous rectification architecture for high efficiency
• Adjustable output voltage capability within specified limits
• Integrated shutdown control for power management
• Automotive qualification compliant

Voltage Regulators - DC DC Switching Regulators Applications

• Portable power conversion systems
• Digital medical weight scale designs
• Pulse oximeter circuits
• Digital thermometer implementations

Voltage Regulators - DC DC Switching Regulators Procurement Notes

Verify the specific suffix CHY corresponds to the SOT-23-6 package configuration as documented in official Microchip datasheets. Confirm that the -I temperature grade meets the operational requirements for industrial environments ranging from -40°C to 125°C junction temperature. Ensure compatibility with the required input voltage range starting at 0.65V minimum.

Voltage Regulators - DC DC Switching Regulators Selection Notes

Select this component when a compact synchronous boost converter is required for low-power applications. The SOT-23-6 package offers space efficiency compared to larger footprints. Consider the 500kHz switching frequency for balancing component size and efficiency. Verify that the 350mA output current capacity aligns with the load requirements of the target circuit design.

Voltage Regulators - DC DC Switching Regulators Part Context

This part belongs to the MCP1640 family of single quad-A battery boost converters. The family includes variants with different packages such as DFN-8. The MCP1640 series is designed for portable applications requiring efficient power conversion from single-cell sources. It integrates features suitable for battery-powered devices needing stable regulated outputs.

Voltage Regulators - DC DC Switching Regulators Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation.