MIC2545A-2BM TR

Product Overview

The MIC2545A-2BM TR from Microchip Technology is an active high-side power switch intended for USB-related distribution applications. It provides a single non-inverting On/Off output with a 2.7V to 5.5V load voltage range and a maximum output current of 3A. The 8-SOIC surface-mount device includes adjustable current limiting, over-temperature protection, reverse-current protection, status indication, and slew-rate control. Its typical on-resistance is 35mOhm.

Key Features

• Single high-side N-channel output with 1:1 input-to-output ratio and On/Off interface
• Load voltage range of 2.7V to 5.5V and maximum output current of 3A
• Adjustable current limiting, over-temperature protection, and reverse-current fault protection
• Slew-rate controlled output and status flag for controlled switching and state indication
• Typical Rds On of 35mOhm in 8-SOIC surface-mount package
• Operating temperature range of -40°C to 85°C (TA) and Active lifecycle status

Applications

• Switching and protecting USB host ports for peripherals
• Controlling power to USB-connected modules in embedded systems
• Current-limited distribution for USB-based accessory boards

Design & Procurement Notes

Designers should confirm that the load voltage, 3A maximum, and adjustable current limit match the downstream USB circuit. The status flag and slew-rate control support controlled enablement and monitoring, while over-temperature and reverse-current protection can reduce stress during fault conditions. The 8-SOIC surface-mount package and -40°C to 85°C operating range should be checked against board layout and thermal requirements.