MIC2545A-2BTS

Overview

The MIC2545A-2BTS is a single-channel, high-side power switch manufactured by Microchip Technology. It features an N-channel MOSFET output capable of handling up to 3A with a typical on-resistance of 35 milliohms. The device operates within a load voltage range of 2.7V to 5.5V and includes resistor-programmable current limiting and soft-start functionality. Packaged in a 14-TSSOP surface-mount case, it provides thermal shutdown protection and reverse current blocking for robust power distribution management.

Feature Summary

• Resistor-programmable output current limit and soft-start capability
• Integrated thermal shutdown and reverse current flow blocking
• Open-drain flag output for controller status indication

Applications

• USB power distribution systems
• PCI bus power switching
• Notebook PC power management

Procurement Notes

Verify the specific suffix 'BTS' against the official datasheet to confirm package type and tape-and-reel configuration. Ensure compatibility with existing PCB footprints for the 14-TSSOP form factor. Confirm that the non-RoHS status aligns with your assembly requirements before finalizing procurement orders.

Selection Notes

Select this component when a single-channel high-side switch with adjustable current limiting is required. It is suitable for applications needing controlled turn-on times to prevent inrush currents. Consider the 14-TSSOP package constraints and the need for external programming resistors for current threshold setting during circuit design.

Part Context

This part belongs to the MIC2545A family of programmable current-limit high-side switches. It is designed to replace discrete solutions by integrating protection features directly into the switch. The device simplifies ACPI and USB compliance by reducing the number of external components needed for power management circuits.

Replacement Considerations

MIC2545A-1YTS is listed as a direct substitute option.