Datasheet in PDF for the SY8003ADFC, with C178236 in the name, a number that resembles an LCSC part code.

Datasheet for the Atmel AT89S52, one of the most popular 8051-compatible microcontrollers, with 8 KB of ISP flash, 256 bytes of RAM and three 16-bit timers.

Datasheet for the Texas Instruments TPS51225, a 1.48 MB PDF. This part is a dual synchronous step-down controller with a 5 V LDO, widely used on notebook boards to…

Portuguese reference on PWM controllers and the core voltage regulator of a motherboard, provided as a 1.06 MB PDF.

Datasheet for the PAM2306, a dual-channel synchronous step-down DC-DC converter from Diodes Incorporated.

Datasheet for the Atmel AT89S8252, an 8051-family microcontroller with 8 KB of downloadable flash, 2 KB of EEPROM and an SPI interface used for in-system programming.

Texas Instruments TPS51462 datasheet, 3.32 MB PDF, for a step-down voltage regulator controller used on notebook motherboards.

Datasheet for the Texas Instruments TPS51285B, supplied as a 1.37 MB PDF. The TPS51285 family are dual synchronous step-down controllers with 5 V and 3.3 V LDOs…

Datasheet in PDF form, 1.32 MB, carrying a Texas Instruments literature number: SLVS631 at document revision C.

Revision 5 datasheet for the SN74LS569A, a synchronous 4-bit up/down binary counter with 3-state outputs from the 74LS low-power Schottky TTL line, in a 108 KB PDF.

Datasheet for the Richtek RT8068AZQW, a compact step-down DC-DC converter, provided as a 243 KB PDF.

Datasheet in PDF form for the Texas Instruments SN74S1053, a Schottky-family bus-termination diode array, here with the NS suffix that TI uses for its SOP package…