MIC2544-1BMM

Overview

The MIC2544-1BMM is a high-side power switch IC designed for load distribution applications. It features an N-channel output with a maximum on-resistance of 120 mΩ and supports a continuous output current of 500 mA. The device operates within a supply voltage range of 2.7 V to 5.5 V and includes programmable current limiting from 100 mA to 1.5 A. It offers fault protection with a maximum turn-on time of 5 ms and a maximum off-time of 22 µs. The component is housed in an 8-pin MSOP surface-mount package and functions across a temperature range of -40°C to +125°C.

Feature Summary

• Integrates programmable current limit functionality for precise load management
• Provides comprehensive fault protection mechanisms including overcurrent handling
• Features ACPI interface compatibility for system control integration

Applications

• USB switching applications
• Load distribution systems
• Peripheral power management

Procurement Notes

Verify the specific suffix 'BMM' against official Microchip documentation to confirm the exact package variant and tape-and-reel specifications. Ensure that the ordering information matches the required lead time and packaging format, as distributor listings may vary in stock availability or bundle configurations. Cross-reference the datasheet revision date to guarantee compliance with current manufacturing standards.

Selection Notes

Select this component when a single-channel high-side switch with adjustable current limiting is required. The 120 mΩ on-resistance balances efficiency and cost for moderate current loads up to 500 mA. Consider the 8-pin MSOP package for space-constrained designs requiring surface-mount assembly. Validate that the 2.7 V to 5.5 V operating range aligns with the target system's power supply architecture.

Part Context

This part belongs to the MIC2544 series of power switch ICs manufactured by Microchip Technology. The series provides integrated solutions for managing power distribution in electronic systems. The MIC2544-1BMM specifically denotes a variant within this family, characterized by its high-side topology and programmable protection features, serving as a key component in modern power management architectures.

Replacement Considerations

Public confirmed substitute part numbers include MIC2544-1YM and MIC2544-1YMM. Verify pinout compatibility and electrical parameter equivalence before substitution.