Before, we introduced that Fuman released the latest USB PD fast charging chip XPD518A/B. The built-in MOS peripheral only needs a capacitor and a resistor. This chip has attracted the attention of many people in the industry, especially the design of built-in MOS, which is quite rare in the industry. In addition, Fuman USB PD series protocol chip also brings a 45W version XPD545, which is complementary to XPD518A/B with 18W output. One focuses on mobile phone chargers, and the other focuses on fast charging for high-power tablets, notebooks and other devices.