Diodes Incorporated AP2501FGE-7 USB Power Switch

The AP2501FGE-7 from Diodes Incorporated is a high-quality, integrated high-side power switch optimized for Universal Serial Bus (USB) and other hot-swap applications. This product is specifically designed to provide a robust and efficient solution for USB power distribution systems and is compliant with USB 2.0 and 3.0 power specifications.

Featuring a precise current-limiting threshold of 2.1A (min), the AP2501FGE-7 ensures protection for USB ports against overcurrent conditions that could damage both the host device and the USB peripheral. The built-in thermal shutdown function provides additional protection by turning off the power switch to prevent excessive heating, thereby enhancing system safety.

With a fast short-circuit response time of less than 5µs, this power switch is capable of quickly responding to fault conditions, further safeguarding the devices connected to it. The AP2501FGE-7 is also equipped with under-voltage lockout (UVLO) to ensure that the switch remains off when the input voltage is below the operating threshold, preventing malfunctioning during low voltage conditions.

This power switch is available in a small, space-saving SOT-25 package, making it an ideal choice for compact USB hubs, docking stations, and other space-constrained applications. The AP2501FGE-7 operates over a wide voltage range from 2.7V to 5.5V, which allows for flexibility in various system designs and ensures compatibility with a broad range of USB-powered devices.

For system status feedback, the AP2501FGE-7 features an active-low fault flag output, which notifies the system controller of overcurrent, thermal shutdown, or UVLO conditions. This enables system designers to implement error handling routines that can take corrective actions, such as alerting the user or attempting a power reset.

In summary, the AP2501FGE-7 USB power switch from Diodes Incorporated is a reliable and protective solution for managing power in USB systems, offering current limiting, thermal protection, and fast fault response in a compact package. Its compliance with USB power specifications and its protective features make it a top choice for designers looking to enhance the safety and stability of their USB power distribution applications.