System Controls
Exar Corporation offers a broad range of USB VBUS power distribution switches supporting both the USB 2.0 and latest USB 3.0 specifications. These devices, the SP/XRP252x series, are offered in single and dual channels configuration for maximum design flexibility. The XRP2527 and XRP2528 are generic single and dual channels power distribution switches capable of operating at input voltage as low as 1.8V supporting the typical 1.8V, 2.5V, 3.3V and 5V power rails. Current limit for each channel is programmable from 300mA up to 1A through an external resistor and achieves better than 8% accuracy.
