MIC2012-2PCQS-TR

Controllers Overview

The MIC2012-2PCQS-TR is a dual-channel USB power switch designed for ACPI S3 state support. It operates within a supply voltage range of 4.5V to 5.5V and functions across an ambient temperature range of 0°C to +70°C. The device integrates two independent switches with make-before-break switching capabilities. In the active S0 state, it provides a minimum current limit of 500mA per channel via a 100mΩ MAIN switch. In the standby S3 state, the current limit reduces to 100mA through a 500mΩ AUX switch. The package is a 16-lead QSOP.

Controllers Feature Summary

• Integrated switching matrix supports ACPI S0/S3 state transitions without external FET circuits
• Make-before-break switching ensures glitch-free transitions between states
• Bi-level current-limit preserves auxiliary supply voltage regulation in standby mode
• Thermally isolated channels prevent faults in one channel from affecting the other

Controllers Applications

• Desktop PCs
• Notebook PCs
• Notebook Docking stations
• LAN Servers
• PC Motherboards

Controllers Procurement Notes

Verify the specific ordering suffix against the manufacturer's official documentation to confirm pinout compatibility and enable logic levels. The -2 variant utilizes active-low enable inputs. Ensure the component meets RoHS standards if required by your design specifications. Confirm that the 16-lead QSOP package aligns with your PCB footprint requirements before finalizing procurement.

Controllers Selection Notes

Select this component when designing systems requiring compliant USB power distribution with ACPI S3 wakeup support. The MIC2012-2 variant is appropriate for designs utilizing active-low control signals. Consider the thermal resistance of the QSOP package and the ambient operating temperature limits when determining heat dissipation strategies for high-load applications.

Controllers Part Context

This part belongs to the MIC2012/MIC2072 family of USB power controllers manufactured by Micrel (now Microchip Technology). While sharing core functionality, the MIC2012 differs from the MIC2072 option by lacking output latching upon overcurrent conditions. The MIC2012 automatically resets outputs when the die temperature cools below the threshold, whereas the MIC2072 requires manual intervention or load removal to reset.

Controllers Replacement Considerations

The MIC2012-1PCQS serves as a functional alternative for designs requiring active-high enable inputs instead of active-low. Both variants share identical electrical characteristics and pinouts, differing only in the logic polarity of the EN1 and EN2 pins.