MIC2544-2BM-TR

Overview

The MIC2544-2BM-TR is a single high-side power switch IC from Microchip Technology, designed for load management and power distribution. It features an N-channel MOSFET with a maximum on-resistance of 120 mΩ and supports an output current up to 500 mA. The device operates within a supply voltage range of 2.7 V to 5.5 V and includes programmable current limiting adjustable from 100 mA to 1.5 A. Key timing parameters include a maximum turn-on time of 5 ms and a maximum off-time of 22 μs. It functions reliably across an operating temperature range of -40°C to +85°C.

Feature Summary

• Integrates a high-side N-channel power switch with low on-resistance for efficient power delivery.
• Features programmable current limit control allowing precise protection threshold adjustment.
• Provides fast switching characteristics with defined turn-on and off-time specifications.

Applications

• High-side load switching in embedded systems
• Power distribution units (PDUs) for peripheral devices
• USB port protection and management circuits

Procurement Notes

Verify the specific suffix 'BM' against the manufacturer's official datasheet to confirm package type and tape/reel specifications. Ensure the ordering part number matches the exact electrical characteristics required for your design, as minor variations may exist between similar series members. Cross-reference the component marking code with the latest production data to avoid counterfeit or obsolete stock issues during procurement.

Selection Notes

Select this component when a single-channel high-side switch with programmable current limiting is required. It is suitable for applications needing robust overcurrent protection and low conduction losses. Consider the 8-SOIC package constraints and the 2.7V to 5.5V supply range compatibility with your system logic levels before finalizing the design choice.

Part Context

This part belongs to the MIC2544 series of power switch ICs, which are optimized for USB and general-purpose power distribution. The series offers various channel configurations and current limits. The MIC2544-2BM-TR specifically denotes a single-channel variant with a particular current limit setting and SOIC-8 packaging, intended for surface-mount assembly in compact electronic designs.

Replacement Considerations

Potential substitutes include other MIC2544 series variants such as MIC2544-2YM-TR or MIC2544-1YMM-TR, provided they match the required current limit settings and package dimensions. Verify pinout compatibility and electrical parameter equivalence before substitution to ensure circuit functionality remains intact.

FAQ

What is the maximum output current capability of the MIC2544-2BM-TR?

The device supports an output current of up to 500 mA, with programmable current limiting adjustable from 100 mA to 1.5 A.

Does the MIC2544-2BM-TR support high-side switching?

Yes, it is designed as a single high-side switch using an N-channel MOSFET configuration.