The transistor size reduction allows for smaller GaN USB chargers compared to old silicon technology chargers. Increased efficiency is crucial in USB chargers because it reduces waste heat, lowering the risk of overheating and minimizing the need for excessive cooling. GaN technology chargers tend to feel less warm compared to those using silicon transistors, making them more comfortable for consumers.
The faster switching of GaN transistors offers better control over charging and quicker response to events such as overheating or overvoltage. This efficiency and faster switching are essential as USB-C handles increasingly higher power loads, with 100W loads per port becoming more common and 240W chargers soon to be a reality. Additionally, a single GaN charger with multiple high-output ports can replace multiple older chargers, providing added convenience.
