These supply the +5V (Standby), +12V, and +24V rails.
The absence of an official datasheet for the does not mean you are flying blind. By understanding the common buck converter topology, identifying pins via continuity testing, and sketching a schematic, you can confidently repair or redesign circuits using this enigmatic SMD code.
If you want, provide a photo of the part, the PCB silkscreen, or the full schematic/context and I’ll identify the exact function and suggest datasheets or replacements.
