MIC2548A-2YM-TR

Overview

The MIC2548A-2YM-TR is a single-channel high-side power switch IC from Microchip Technology, housed in an 8-pin SOIC package. It operates within a supply voltage range of 2.7 V to 5.5 V and supports output currents up to 1.5 A. The device features a programmable current limit adjustable between 100 mA and 1.5 A, with a maximum on-resistance of 120 mΩ. Key timing specifications include a maximum turn-on time of 5 ms and a maximum off-time of 22 µs. It functions reliably across a temperature range of -40°C to +85°C.

Feature Summary

• Integrates a high-side N-channel switch optimized for low-loss DC power distribution.
• Features a fully programmable current limit allowing precise load protection adjustment.
• Includes built-in thermal shutdown and reverse voltage protection mechanisms.

Applications

• USB power distribution hubs
• Peripheral load switching in embedded systems
• Battery-powered equipment power management

Procurement Notes

Verify the specific suffix 'TR' indicates tape-and-reel packaging when sourcing components. Confirm that the 'A' designation aligns with the required electrical characteristics for your design. Ensure the 8-SOIC footprint matches your PCB layout constraints. Cross-reference the manufacturer's latest datasheet for any updates to pinout or absolute maximum ratings prior to final procurement decisions.

Selection Notes

Select this component when a single-channel high-side switch with adjustable current limiting is required. It is suitable for applications needing protection against overcurrent conditions without external sensing resistors. Consider the 120 mΩ on-resistance for efficiency calculations. Verify that the 2.7 V minimum operating voltage meets your system's lowest supply rail requirements during selection.

Part Context

This part belongs to the MIC2548A series of integrated high-side power switches. These devices are designed for efficient power distribution in portable and industrial electronics. The series offers a compact solution for managing multiple loads while providing essential protection features. It serves as a direct replacement for older discrete switching solutions in modern power management architectures.

Replacement Considerations

The MIC2548-2YM is a related variant within the same family. Verify if the non-'A' suffix meets all electrical requirements before substitution. Check datasheets for differences in current limit ranges or package tolerances to ensure compatibility.