The LAN9303 from Microchip is a 3-port 10/100 managed Ethernet Switch in a small footprint QFN package, featuring a MII/RMII/Turbo MII interface that allows network speeds of up to 200Mbps.

Full-featured 3-port Switches with per-port IEEE 802.1Q VLAN support (up to 16 VLAN groups)
±8kV/15kV per-port ESD protection
IGMP v1/v2 monitoring for multicast packet filtering
Up to 200 Mbps network speed via a Turbo MII interface
Optional EEPROM or external CPU serial management support via an I2C™ interface
Virtual PHY feature simplifies software development by mimicking multiple switch ports as a single-port PHY
Integrated regulators require a single 3.3V supply
42 per-port MIB counters for efficient network management

Ethernet Communications - Microchip