Low-power USB 3.0 hub chip drives four devices

Low-power USB 3.0 hub chip drives four devices

The µPD720210 SuperSpeed USB 3.0 hub controller system-on-chip is used in hubs that enable connection of multiple devices such as PC docking stations and digital TVs. It supports up to four downstream ports; each at all USB speeds.

The IC takes only 5 mW in power-saving mode and employes technology that reduces power consumption when all the ports are in an unconnected state and an improved circuit design that dramatically lowers leakage current when a connected peripheral device is in low-power mode. The device achieves low 350-mW power consumption in USB 3.0 active mode. The chip comes in a compact 9 × 9-mm QFN package and integrates step-down regulators from 5 V to 3.3 and 1.05 V. ($3.50 ea/sample qty — available now.)

By Jim Harrison

Renesas Electronics America , Santa Clara , CA
Sales 800-366-9782
http://am.renesas.com