MIC2548-1YMM

Overview

The MIC2548-1YMM is a single high-side power switch IC designed for USB interface 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 1.5 A. Key electrical parameters include a maximum on-resistance of 120 mΩ, a maximum run time of 5 ms, and a maximum off time of 22 µs. It functions reliably across an operating temperature range of -40°C to +85°C.

Feature Summary

• Programmable current limit capability for customized overcurrent protection thresholds
• High-side switching architecture with active-high control logic
• Integrated thermal shutdown and undervoltage lockout mechanisms

Applications

• USB port power distribution and protection
• Peripheral device power management
• Overcurrent protection in embedded systems

Procurement Notes

Verify the specific ordering suffix to ensure the correct package type and tape-and-reel configuration match your assembly requirements. Confirm that the component meets RoHS compliance standards if required by your manufacturing process. Cross-reference the datasheet revision date to ensure compatibility with your design specifications. Ensure proper handling procedures are followed during storage and installation to maintain device integrity.

Selection Notes

Select this component when a single-channel high-side switch with adjustable current limiting is required for low-voltage applications. Consider the 120 mΩ maximum on-resistance for efficiency calculations and the 2.7 V to 5.5 V operating range for system voltage compatibility. Evaluate the MSOP-8 package constraints against your PCB layout space and thermal dissipation needs before finalizing the design choice.

Part Context

The MIC2548-1YMM belongs to the MIC2548 series of power distribution switches manufactured by Microchip Technology. This series provides integrated solutions for protecting power lines in portable and industrial electronics. The part is specifically optimized for USB interface applications, offering robust protection features within a compact surface-mount package suitable for modern electronic designs.

Replacement Considerations

MIC2548-1YM