Richtek RT8120 datasheet, a 221 KB PDF. The RT8120 is a single-phase synchronous buck PWM controller, used on motherboards and graphics cards to generate rails such as memory or chipset voltage. The document explains the pinout, enable and feedback functions, gate driver outputs and typical application circuit. Use it to check the supply and enable pins, calculate the expected output from the feedback divider, and judge whether the high- and low-side MOSFET drive signals are present when a rail is missing.
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 @ic_mosfet_pdf_datasheets. 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.