MIC2547-2YTS

Overview

The MIC2547-2YTS is an integrated high-side dual power switch optimized for low-loss DC power switching and ACPI applications. It features two N-channel outputs with a maximum load current of 1.5A per channel. The device operates within a supply voltage range of 2.7V to 5.5V and includes programmable current limiting adjustable from 100mA to 1.5A via external resistors. Key electrical parameters include a typical on-resistance of 80mΩ, a maximum turn-on time of 5ms, and a maximum blanking time of 22μs. It supports reverse current protection and thermal shutdown.

Feature Summary

• Integrated dual high-side switches with programmable current limit control
• Built-in soft-start circuitry to minimize inrush current during enable
• Comprehensive fault protection including overcurrent, thermal shutdown, and reverse current blocking

Applications

• USB power distribution systems
• Advanced Configuration and Power Interface (ACPI) implementations
• Low-loss DC power switching circuits
• Battery-powered portable devices requiring efficient power management

Procurement Notes

Verify the specific suffix 'YTS' corresponds to the TSSOP-16 package and tube packaging configuration. Confirm RoHS compliance status as some variants may differ. Ensure the design accounts for the active-low input logic level. Cross-reference the manufacturer's latest datasheet for any updates to pinout or electrical characteristics before finalizing the bill of materials.

Selection Notes

Select this component when dual independent high-side switching with precise current regulation is required. The programmable current limit allows customization for different load profiles without changing internal components. Consider the 80mΩ on-resistance for efficiency calculations. The wide operating temperature range suits industrial and automotive environments. Verify that the external resistor values for current limiting fall within the specified operational constraints.

Part Context

This part belongs to the MIC2546/MIC2547 family of integrated power switches. The MIC2547 variant specifically offers dual channels, whereas the MIC2546 provides a single channel. Both are designed to replace discrete MOSFET solutions, reducing board space and component count. They are commonly used in legacy and modern systems requiring robust power distribution with minimal external support circuitry.

Replacement Considerations

• MIC2547-1YM

FAQ

How is the output current limit configured?

The current limit is set using an external resistor connected to the ILIM pin, allowing adjustment between 100mA and 1.5A.

Does the device support reverse current flow?

Yes, the MIC2547-2YTS includes reverse current protection to prevent backflow from the load to the source.