Adapters and chargers

USB power delivery (USD-PD) is a universal standard to charge or supply any device with a USB-C port, including those with higher power ratings, such as hard drives, printers, laptops, and smartphones with a large battery capacity. USB-PD chargers and adapters can be used to power such a wide variety of devices as they supply the requested amount of power needed. The power source and sink communicate through the USB-PD protocol and the sink defines how much power is required. The charging voltage and current are adjusted accordingly by the power source, the USB-PD charger or power adapter.

Infineon's innovative CoolGaN™ technology sets a new standard for power transistors. CoolGaN™ products feature gallium nitride (GaN) transistors instead of silicon. Their higher critical electrical fields enable outstanding specific dynamic on-state resistance and smaller capacitances compared to silicon MOSFETs, which makes GaN HEMTs great for high speed switching applications. Gallium nitride transistors can be operated with reduced dead-times which results in higher efficiency and better thermals. Operation at high switching frequencies allows the volume of passive components to shrink which improves overall power density. GaN enables for smaller and lighter chargers and adapters.