MIC2012 MIC2012/MIC2072 USB Power Controller Micrel General Description The MIC2012 is a dual channel USB power switch designed to support the power distribution requirements for USB Wakeup from the ACPI S3 state.
The MIC2012 will directly switch its two outputs between a 5V main supply and a 5V auxiliary supply normally provided in ATX style power supplies.
The MIC2012 will adjust its current-limit threshold according to the ACPI state it is in.
In the normal active S0 state the current-limit is set at 500mA minimum per channel satisfying the USB continuous output current specification.
In the S3 state the current-limit can be reduced to only 100mA per channel to minimize the current that...

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