MIC2544A-2YMM-TR

Overview

The MIC2544A-2YMM-TR is a single-channel high-side power switch manufactured by Microchip Technology. It operates within a supply voltage range of 2.7V to 5.5V and supports load currents up to 1.5A. The device features an 8-pin MSOP surface-mount package with an operating temperature range of -40°C to +85°C. Key electrical characteristics include a maximum on-resistance (RdsOn) of 120mΩ, a maximum run time of 5ms, and a maximum blanking time of 30µs. It utilizes an ACPI interface for control.

Feature Summary

• Programmable current limit protection
• Integrated thermal shutdown
• Status flag output

Applications

• USB hub power distribution
• Peripheral device power switching
• Battery-powered system load management

Procurement Notes

Verify the specific suffix '2YMM' against the official Microchip datasheet to confirm pinout and functional compatibility. Ensure the ordering part number matches the required tape-and-reel packaging configuration. Cross-reference the manufacturer's latest product change notices to validate component revisions and assembly site information before finalizing procurement.

Selection Notes

Select this component for applications requiring precise current limiting and thermal protection in compact designs. The MSOP package suits space-constrained PCB layouts. Verify that the load current requirements do not exceed the 1.5A continuous rating and that the input voltage remains within the 2.7V to 5.5V operational window for reliable performance.

Part Context

This device belongs to the MIC2544 family of high-side switches designed for portable electronics. It serves as a robust solution for managing power delivery to peripheral loads. The integration of programmable limits and status flags distinguishes it from basic switch implementations, offering enhanced system monitoring capabilities.

Replacement Considerations

MIC2544A-1YM-TR is a documented alternative within the same family, featuring similar high-side switching capabilities.