Microchip Technology, Inc. Controllers MIC2012PZM-TR

The MIC2012PZM-TR is a dual-channel USB power switch designed for efficient 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 conserve power and maintain voltage regulation during fault conditions. This power controller incorporates make-before-break switching to ensure seamless transitions between power states, minimizing glitches. Each channel is thermally isolated, preventing faults in one channel from affecting the other. The MIC2012PZM-TR also includes fault status outputs for overcurrent and thermal shutdown conditions, enhancing system reliability. It is suitable for applications in desktop PCs, notebook PCs, docking stations, and PC motherboards. The device operates within a temperature range of 0¬8C to +70¬8C and is packaged in an 8-lead SOIC format.