MIC2548A-1YMM

Overview

The MIC2548A-1YMM is a single-channel high-side power switch IC from Microchip Technology, designed for robust power distribution applications. It features a programmable current limit ranging from 100 mA to 1.5 A, allowing precise protection settings. The device operates within a supply voltage range of 2.7 V to 5.5 V and supports output currents up to 500 mA continuously. Key electrical parameters include a maximum on-resistance of 120 mΩ, a maximum turn-on time of 5 ms, and a maximum off-time of 22 µs. It is housed in an 8-pin MSOP package with dimensions of 3x3 mm, suitable for surface-mount installation across industrial temperature ranges.

Feature Summary

• Programmable current limit capability for customizable overcurrent protection
• High-side switching architecture with low on-resistance for efficient power delivery
• Integrated fast turn-on and controlled turn-off timing characteristics

Applications

• Industrial equipment power distribution systems
• Automotive subsystem power management
• Consumer electronics peripheral protection

Procurement Notes

Verify the exact suffix against official Microchip documentation to confirm package type and tape/reel specifications. Ensure compatibility with your PCB footprint and thermal requirements. Cross-reference the datasheet revision date to confirm parameter accuracy. Confirm RoHS compliance status if required by your manufacturing standards. Validate that the 8-pin MSOP package matches your assembly capabilities.

Selection Notes

Select this component when a single-channel high-side switch with adjustable current limiting is required. The 100 mA to 1.5 A programmable range offers flexibility for various load profiles. Consider the 120 mΩ on-resistance for efficiency calculations. The 2.7 V to 5.5 V operating range suits standard logic-level control interfaces. Evaluate the 8-pin MSOP package size for space-constrained designs.

Part Context

The MIC2548A series belongs to Microchip's family of programmable current limit high-side switches. These devices are engineered for reliable power distribution in environments requiring precise fault protection. The MIC2548A-1YMM specifically denotes the single-channel variant in an 8-pin MSOP package. This series complements other power management solutions by providing integrated switching and protection functions.

Replacement Considerations

Check for MIC2548-1YMM as a potential alternative within the same family. Verify pinout compatibility and electrical parameter overlaps before substitution. Consult official Microchip documentation for confirmed cross-references.