MIC2042-1YM

Overview

The MIC2042-1YM is a single-channel high-side power distribution switch manufactured by Microchip Technology. It operates within an input voltage range of 0.8V to 5.5V and features a typical on-resistance of 35mΩ. The device provides a fixed current limit of 3A with integrated thermal shutdown protection. It utilizes an active-high enable logic interface and includes undervoltage lockout (UVLO) functionality. The component is housed in an 8-pin SOIC package, suitable for surface-mount applications.

Feature Summary

• High-side MOSFET switch optimized for low-voltage power distribution
• Integrated thermal shutdown and short-circuit protection mechanisms
• Active-high enable logic with undervoltage lockout capability

Applications

• General purpose circuit protection
• Multi-port USB power distribution
• Load driver applications requiring overcurrent protection

Procurement Notes

Verify the specific suffix 'YM' corresponds to the 8-pin SOIC package variant when sourcing. Confirm that the fixed 3A current limit meets system requirements, as other variants offer programmable limits. Ensure compatibility with the 0.8V to 5.5V operating voltage range for the target application environment.

Selection Notes

Select this model for single-channel high-side switching needs where a fixed 3A limit is sufficient. Consider alternative MIC2042 variants if programmable current limiting or different package sizes are required. Verify that the 35mΩ on-resistance aligns with efficiency targets for the specific load current conditions.

Part Context

This component belongs to the MIC2042 series of low-voltage power switches. The series includes various channel counts and package options, such as the dual-channel MIC2042-2YM and the TSSOP-packaged MIC2042-1YTS. The MIC2042-1YM specifically addresses single-channel applications requiring robust protection in compact footprints.

Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation.