ABLIC Inc. IC REG CTRLR BUCK SOT23-5 S-8521B31MC-ATQT2U

The S-8521B31MC-ATQT2U is a product code that likely corresponds to a specific electronic device or component. Unfortunately, without further information about the manufacturer or context, it's difficult to provide detailed specifications or features of this item. It may be helpful to conduct additional research using this code and consulting relevant industry sources for more details.