Microchip MIC2545A-1YTS

USB 开关1不需要3A

Overview

The MIC2545A-1YTS and MIC2549A are integrated high-side power switches optimized for low-loss DC power switching and other power-management applications, including advanced configuration and power interface (ACPI). The MIC2545A/49A is a cost-effective, highly-integrated solution that requires few external components to satisfy USB and ACPI requirements.Load current management features include a precision, resistor-programmable output current-limit and a soft-start circuit, which minimizes inrush current when the switch is enabled. Thermal shutdown, along with adjustable current-limit, protects the switch and the attached device.The MIC2545A/49A's open-drain flag output is used to indicate current-limiting or thermal shutdown to a local controller. The MIC2549A has an additional internal latch which turns the output off upon thermal shutdown, providing robust fault control. The enable signal is compatible with both 3V and 5V logic, and is also used as the thermal shutdown latch reset for the MIC2549A.The MIC2545A-1YTS and MIC2549A are available in active-high and active-low enable versions in 8-pin DIP, SOIC, and TSSOP packages.

Features

Bulk Package
Resistance of 50MOhm

Surface Mount Mounting Type

Applications

There are a lot of Microchip Technology
MIC2545A-1YTS Power Switches ICs applications.

• Smartphone and PDA
• Portable GPS Device
• Set-top-box
• USB Power Distribution
• Notebook PC
• Telecom and Network Systems
• PC Card Hot Swap
• Storage Drives
• Portable/Handheld Devices
• Wireless/Networking Cards