| Pin/Node | APW70 (Typical 48-pin QFN) | LAC391P (16-pin TSSOP) | |----------|----------------------------|-------------------------| | VIN | Pin 1 (19V from adapter) | Pin 11 (19V from adapter) | | EN (Enable) | Pin 2 (from LAC391P PGOOD) | Pin 3 (from system or battery) | | VOUT1 | Pin 15-18 (3.3V output) | Pin 14-15 (SW node to inductor) | | FB (Feedback) | Pin 19 (3.3V sense) | Pin 8 (0.6V ref via divider) | | PGOOD | Pin 20 (power good output) | Pin 7 (open-drain output) | | VCC (internal LDO) | Pin 30 (5V input) | Not applicable (uses VIN) |
Identifying the exact order in which power rails (like 3V, 5V, and CPU core voltages) must activate for the laptop to boot. apw70 lac391p schematic portable
“Results on the g-named search engine are pretty sparse and vague... It's a re-branded Clevo laptop... if that narrows it at all.” Facebook · Chip level teaching · 4 years ago Where to Search for Schematics | Pin/Node | APW70 (Typical 48-pin QFN) |