MIC2548-2YM

Overview

The MIC2548-2YM is a single high-side power switch IC from Microchip Technology, designed for USB power distribution and ACPI applications. It features a programmable current limit ranging from 100 mA to 1.5 A, allowing precise load protection. The device operates within a supply voltage range of 2.7 V to 5.5 V and supports an output current up to 500 mA with a maximum on-resistance of 120 mΩ. Key timing parameters include a maximum turn-on time of 5 ms and a maximum off-time of 22 µs. It is available in an 8-pin SOIC package and functions reliably across a temperature range of -40°C to +85°C.

Feature Summary

• Programmable current limiting capability for flexible load protection
• Integrated high-side switching topology for efficient power distribution
• Optimized for low-loss DC power switching in USB and ACPI systems

Applications

• USB power distribution networks
• Advanced Configuration and Power Interface (ACPI) control
• DC power switching management

Procurement Notes

Verify the specific ordering suffix against the manufacturer's official datasheet DS20005725 to ensure correct package type and temperature rating. Confirm that the 'YM' suffix corresponds to the required SOIC tube packaging variant. Cross-reference the part number with authorized distributors to validate authenticity and avoid counterfeit components. Ensure the selected variant matches the intended current limit configuration requirements.

Selection Notes

Select this component when a single-channel high-side switch with adjustable current limiting is required for USB or general DC loads. Consider the 120 mΩ on-resistance for thermal management in space-constrained designs. Evaluate the 2.7 V to 5.5 V operating range against system supply voltages. The programmable current limit allows customization for various load profiles without changing hardware.

Part Context

The MIC2548-2YM belongs to the MIC2548 series of integrated high-side power switches by Microchip Technology. This series is engineered for low-loss DC power switching and power management applications. It complements other devices like the MIC2544 in providing robust protection and control for downstream loads in modern electronic systems requiring precise power distribution.

Replacement Considerations

Consult the official Microchip documentation for direct cross-references. Verify pinout compatibility and electrical specifications before substituting with similar high-side switches from other manufacturers.