MIC2072-2PZQS-TR

Controllers Overview

The MIC2072-2PZQS-TR is a dual-channel USB power controller manufactured by Microchip Technology, housed in a 16-lead QSOP package. It supports ACPI S0/S3 state transitions via an integrated switching matrix without external FETs. The device features make-before-break switching for glitch-free transitions and bi-level current limiting to preserve auxiliary supply voltage regulation during standby. Each channel includes thermal isolation, undervoltage lockout, and fault status outputs. The MIC2072 variant specifically latches the output off upon detecting an overcurrent condition exceeding 5ms, functioning as a circuit breaker.

Controllers Feature Summary

• Integrated switching matrix supporting ACPI S0/S3 state transitions
• Circuit breaker mode with latched output on overcurrent conditions
• Bi-level current limiting for main and auxiliary supplies
• Thermal shutdown protection with automatic reset options

Controllers Applications

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

Controllers Procurement Notes

Verify component authenticity through authorized distribution channels. Confirm that the ordering suffix matches the required enable polarity and fault output configuration. Ensure compliance with RoHS standards and check for any specific handling precautions related to moisture sensitivity. Review the latest datasheet revisions for any updates to electrical characteristics or pin configurations before finalizing procurement orders.

Controllers Selection Notes

Select the MIC2072-2 variant when active-low enable inputs are required for the control logic. This option provides internal pull-ups for the fault status outputs. Consider the MIC2072-1 if active-high enable signals are preferred. Both variants offer identical electrical performance but differ in input logic polarity. Verify that the 16-lead QSOP package fits the available PCB footprint and thermal requirements of the design.

Controllers Part Context

This component belongs to the MIC2012/MIC2072 family of USB power controllers designed for ACPI-compliant systems. The MIC2072 series distinguishes itself from the standard MIC2012 by incorporating a latching circuit breaker feature. This family is optimized for managing power distribution between main and auxiliary 5V supplies in computing platforms requiring reliable wake-from-standby capabilities.

Controllers Replacement Considerations

MIC2012-2PZQS offers similar functionality but lacks the latching circuit breaker feature of the MIC2072. Direct substitution requires evaluating whether the non-latching behavior meets the system's fault management requirements. Other family members like MIC2072-1PZQS share the same package and core features but utilize active-high enable inputs instead of active-low.