MCP1624T-I/CHY

Overview

The MCP1624T-I/CHY is a synchronous step-up DC-DC converter designed for low-voltage input applications. 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 typical maximum output current of 0.35A at a fixed switching frequency of 500kHz. Key electrical characteristics include a typical quiescent current of 19µA, line regulation of 0.01%/V, load regulation of 0.01%, and peak efficiency of 96%. It is housed in a 6-pin SOT-23 package and supports industrial temperature ranges from -40°C to 85°C.

Feature Summary

• Synchronous step-up topology ensures high conversion efficiency
• Low quiescent current operation extends battery life
• Compact surface-mount packaging facilitates space-constrained designs

Applications

• Power supply solutions for PIC microcontrollers
• Battery-powered portable electronic devices
• Automotive electronics requiring robust voltage regulation

Procurement Notes

Verify the specific suffix CHY corresponds to the tape and reel packaging format required for your assembly process. Confirm that the industrial temperature grade (-40°C to 85°C) meets your environmental operating conditions. Ensure the input voltage range aligns with your source power supply specifications before finalizing procurement.

Selection Notes

Select this component when a compact, high-efficiency boost regulator is needed for inputs as low as 0.65V. It is suitable for applications requiring stable output voltages up to 5.5V with moderate current demands. Consider the fixed switching frequency and synchronous design for noise-sensitive environments where efficiency is critical.

Part Context

This part belongs to the MCP1623/24 family of low-voltage input boost regulators manufactured by Microchip Technology. These converters are optimized for powering microcontrollers and other digital logic from single-cell lithium-ion or alkaline batteries. The series emphasizes small footprint and high performance in automotive and industrial sectors.

Replacement Considerations

The MCP1640T-I/CHY is a related synchronous step-up converter within the same manufacturer portfolio. Verify compatibility regarding input voltage ranges, output current capabilities, and pinout configurations before substituting.