Microchip Technology, Inc. Controllers MIC2012-1PZQS-TR

The MIC2012-1PZQS-TR is a dual channel USB power switch designed for power distribution in systems requiring USB Wakeup from the ACPI S3 state. It can switch between a 5V main supply and a 5V auxiliary supply, typically found in ATX power supplies. The device features adjustable current-limit thresholds, providing 500mA per channel in the active S0 state and reducing to 100mA in the S3 state to maintain voltage regulation during low power conditions. This IC incorporates make-before-break switching to ensure glitch-free transitions between power states and includes thermal isolation between channels to prevent faults from affecting the other channel. It also features fault status outputs for overcurrent and thermal shutdown conditions, with options for latching the output off during overcurrent events. The MIC2012-1PZQS-TR is suitable for applications in desktop PCs, notebook PCs, docking stations, and PC motherboards, operating within a temperature range of 0¬8C to 70¬8C.