MIC2547-1BM

Overview

The MIC2547-1BM is a dual high-side power switch IC designed for low-loss DC power switching and advanced configuration and power interface (ACPI) applications. It features two independent N-channel outputs with a maximum continuous output current of 1.5A per channel. The device operates within a supply voltage range of 2.7V to 5.5V and includes programmable current limiting from 100mA to 1.5A. Key protection mechanisms include adjustable current limit, overtemperature shutdown, and reverse current blocking. The typical on-resistance is 80mΩ, with a maximum operating temperature of +85°C.

Feature Summary

• Dual high-side N-channel power switches with integrated fault protection
• Programmable current limiting for precise load management
• Reverse current blocking to prevent back-powering issues
• Overtemperature protection for enhanced system reliability

Applications

• Advanced Configuration and Power Interface (ACPI) systems
• Low-loss DC power distribution networks
• Peripheral power switching in industrial equipment
• Hot-swap controller applications requiring current limiting

Procurement Notes

Verify the specific suffix 'BM' against official Microchip documentation to confirm package type and RoHS status, as legacy variants may differ. Confirm availability through authorized distributors, noting that this part number may be subject to discontinuation or lifecycle changes. Ensure compatibility with existing PCB footprints and thermal requirements before finalizing procurement orders.

Selection Notes

Select the MIC2547-1BM when dual independent high-side switching with programmable current limits is required. It is suitable for applications needing reverse current protection and overtemperature shutdown within a 2.7V to 5.5V range. Consider the 16-SOIC package constraints and ensure the thermal dissipation capabilities meet the application's power density requirements compared to alternative packages like TSSOP.

Part Context

The MIC2547 series comprises integrated dual high-side power switches optimized for low-loss DC power switching. These devices are commonly used in ACPI-compliant systems and general power management applications. The MIC2547-1BM specifically denotes the SOIC-16 package variant, distinguishing it from other package options like the TSSOP-16 found in related model numbers within the same product family.

Replacement Considerations

The MIC2547-1YM is listed as a direct replacement option by some distributors. Verify functional equivalence and pinout compatibility before substitution. Check if the YM suffix indicates a different package or updated manufacturing process that requires design review.