AP33772 USB Type-C™ PD Sink Controller Diodes Incorporated AP33772 USB Type-C™ PD Sink Controller meets USB Power Delivery specification Rev. 3.0 v1.2. Because of its high voltage process, the AP33772 provides a cost-effective USB PD solution without the need for external discrete high-voltage components like LDOs. During the protocol handshake process, packets are transmitted and received through a Biphase Mark Coding (BMC) transceiver with a good eye diagram and high noise immunity. The AP33772 supports I2C communication to implement all of the PD sink functions, such as the requesting of power profiles, Power Device Objects (PDO), and Augmented Power Device Objects (APDO). Rich power functions embedded on the chip reduce the total bill of materials (BOM) while maintaining maximum flexibility.