The usual voltage steps of USB-C are 5 V, 9 V, 15 V and 20 V ; 12V support is optional and is ... down to 3.3 V, even, using a PD standard called PPS (or the AVS standard for EPR-range chargers ...

This year has brought about smaller USB-C wall chargers that support Power Delivery (PD). Basically, they’re wall chargers that are powerful enough to charge your laptop but are much less bulky than ...