Diodes Incorporated AP2281-3WG-7 Power Switch

The AP2281-3WG-7 is a single channel, single pole single throw (SPST) power switch from Diodes Incorporated, designed for USB and other hot-swap applications. This high-quality and reliable component is engineered to provide precision current limiting to protect the host device from potentially damaging overcurrent conditions. It is an essential element in modern electronics where controlled power distribution is necessary to safeguard sensitive circuitry.

This power switch operates with an input voltage range of 2.7V to 5.5V, making it versatile for various applications. The AP2281-3WG-7 is capable of delivering an output current of up to 1.5A, which is suitable for a wide range of USB peripherals and other powered devices. Its low on-resistance of 92mΩ (typical) ensures efficient power delivery and minimal voltage drop across the switch.

The device features built-in over-temperature protection, which shuts down the switch to prevent excessive heat from damaging the IC or the system. Additionally, it incorporates controlled rise time to minimize inrush current, further enhancing the safety of the connected devices. The AP2281-3WG-7 also has an auto-restart feature that attempts to turn the switch back on after a fault condition has been removed, simplifying the recovery process.

Packaged in a compact SOT-25 package, the AP2281-3WG-7 is space-efficient and suitable for high-density circuit designs. Its green molding compound, with lead-free matte tin annealed over copper lead-frame terminals, adheres to the RoHS directive, making it an environmentally friendly choice for electronic manufacturers.

For designers and engineers looking to integrate a robust power management solution into their systems, the AP2281-3WG-7 from Diodes Incorporated offers the perfect blend of protection, efficiency, and compactness.

Manufacturer Part Number: AP2281-3WG-7