Datasheet for the SM3514 device, a 38.4 KB PDF. Apart from the part number the file name carries no details such as vendor, package or revision. Use a document like this to look up which pins carry supply, ground and signals, the absolute maximum ratings and recommended operating conditions when testing the part on a board or sourcing a replacement. It opens in a standard PDF viewer. Similar numbers in this series exist as separate sheets, so confirm the chip is marked SM3514 and that the package matches.
The button opens the matching file on RM Schematics, or a source page if it is not catalogued there yet. The original attachment is from @datasheet_technar_org. Enginerys does not host this file.
How to open a .pdf file
The standard format for schematics, block diagrams, power-sequence charts and service manuals.