FSUSB11 is a low-power full-speed USB switch from Fairchild Semiconductor Corporation. Its features include small size, support for USB 1.1 signal switching, high bandwidth, wide operating voltage range, fast switching speed, and strong anti-overvoltage capability.
The FSUSB11 is a dual single‑pole double‑throw (SPDT) switch designed for USB 1.1 signals. It features an ultra‑low on‑resistance of 1.15 Ω at 4.5 V, a bandwidth greater than 350 MHz, and break‑before‑make operation with TTL‑compatible control inputs.
The device is supplied in MicroPak™ and other surface‑mount packages, operates from 1.65 V to 5.5 V, and supports up to 200 mA switch current. Detailed electrical characteristics, pin assignments, and mechanical dimensions are provided for design integration.
| Bandwidth (‑3 dB) | >350 MHz |
|---|---|
| Supply Voltage Range (VCC) | 1.65 V to 5.5 V |
| Maximum Switch Current | 200 mA |
| Turn‑On/Turn‑Off Time | Typical values shown in figures (ns) |
The recommended operating VCC range is 1.65 V to 5.5 V.
The device is rated for a maximum switch current of 200 mA.
The FSUSB11 provides a bandwidth greater than 350 MHz (‑3 dB).