Datasheet for the SN7406N, a TTL hex inverter buffer/driver with open-collector high-voltage outputs in a plastic DIP package.

PDF datasheet, 206 KB, for the SG3525A regulating PWM controller, revision 2F of the document according to the name.

PDF document identified only as OZ531, about 1.9 MB. OZ-prefixed parts come from O2Micro, a maker of power-management, backlight inverter and charger controllers, so…

Small 329 KB PDF titled OZ9906, with no further detail in the name. The OZ prefix is used by O2Micro, whose ICs often appear in LCD backlight and inverter circuits, so…