MIC2042-1BM-TR

Overview

The MIC2042-1BM-TR is a single-channel high-side power distribution switch manufactured by Microchip Technology. It operates within an input voltage range of 0.8 V to 5.5 V and supports a current limit of 3 A. The device features a typical on-resistance of 40 mΩ and is housed in an 8-pin SOIC package. It includes integrated protection mechanisms such as overcurrent limiting, thermal shutdown, and reverse polarity protection. The component functions with active-high enable logic and exhibits a typical UVLO threshold of 0.225 V.

Feature Summary

• Integrates high-side switching capability for low-voltage power distribution applications
• Provides comprehensive circuit protection through overcurrent limiting and thermal shutdown
• Supports active-high logic control for straightforward interface with system controllers

Applications

• USB port power management and distribution
• Peripheral device power switching in consumer electronics
• General-purpose load driver circuits requiring overcurrent protection

Procurement Notes

Verify the specific suffix 'BM-TR' corresponds to the 8-pin SOIC package and tape-and-reel configuration. Confirm that the current limit rating aligns with the design requirements, as variations exist within the family. Ensure compatibility with the target operating temperature range of -40°C to +85°C. Cross-reference the datasheet for exact pinout and electrical characteristics before finalizing procurement.

Selection Notes

Select this component when a single-channel high-side switch with 3 A current capacity is required. The 8-pin SOIC package offers a compact footprint suitable for space-constrained designs. Consider the 40 mΩ on-resistance for efficiency calculations. Verify that the 0.8 V minimum input voltage meets the system's power rail specifications. Evaluate the need for integrated thermal and overcurrent protection to simplify external component count.

Part Context

This part belongs to the MIC2042 series of USB power switches designed for distributing power to downstream loads. The series provides multiple channel configurations and packaging options to suit various application needs. The MIC2042-1 variant specifically denotes a single-channel device, distinguishing it from dual-channel counterparts like the MIC2042-2. The product line emphasizes ease of use and robust protection features for portable and embedded systems.

Replacement Considerations

Direct substitutes include other MIC2042 variants with compatible packages and electrical ratings, such as MIC2042-1YM-TR or MIC2042-1BTS-TR, provided the pinout and performance parameters match the original design requirements.