MIC2547-1YM-TR

Overview

The MIC2547-1YM-TR is a dual programmable current limit high-side power switch manufactured by Microchip Technology. It operates within a supply voltage range of 2.7 V to 5.5 V and supports an output current of up to 500 mA per channel, with a total device limit of 1.5 A. The current limit is adjustable from 100 mA to 1.5 A. 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. The device functions reliably across an operating temperature range of -40°C to +85°C.

Feature Summary

• Dual-channel high-side switching capability with independent programmable current limits for precise load protection.
• Adjustable current limiting range allows customization from 100 mA to 1.5 A to match specific application requirements.
• Integrated fast fault response with defined turn-on and off-time characteristics for efficient power management.

Applications

• USB hub power distribution and port protection
• Peripheral power switching in consumer electronics
• Battery-powered device load management

Procurement Notes

Verify the exact suffix against the manufacturer's official datasheet to confirm package type and tape-and-reel specifications. Ensure the component matches the required current limit settings and thermal performance for your specific design environment. Cross-reference the ordering number with Microchip Technology documentation to avoid confusion with similar variants in the MIC25xx family.

Selection Notes

Select this component when dual-channel high-side switching with programmable current limits is required for 3.3V or 5V systems. Consider the 120 mΩ on-resistance and 500 mA per-channel output when calculating power dissipation. Verify that the 2.7V to 5.5V input range aligns with your system's power supply rails and that the SOIC-16 package fits your PCB layout constraints.

Part Context

The MIC2547-1YM-TR belongs to Microchip's MIC25xx series of power distribution switches. This series is designed for USB and peripheral power management applications requiring robust overcurrent protection. The device integrates N-channel MOSFETs with control logic to provide high-side switching functionality. It is part of a broader family that includes single, dual, and quad channel variants with different current ratings and package options.

Replacement Considerations

Check Microchip's official cross-reference guides for direct replacements. Variants like the MIC2547-1YM (non-tr) offer the same electrical specifications but in tube packaging instead of tape-and-reel. Other family members such as the MIC2548 may offer additional features but require verification of pin compatibility and current ratings.