FUSB3307 USB Interface IC onsemi FUSB3307 USB Interface IC is a highly integrated USB Power Delivery (PD) controller that controls a DC/DC port power regulator. This interface IC supports a minimum of 3.3V and a maximum of 21V output voltage control to meet the Programmable Power Supplies (PPS) specification. The FUSB3307 IC includes Constant Voltage (CV) and constant Current Limit (CL) control blocks. This interface IC features Under Voltage Protection (UVP), Over Voltage Protection (OVP), Over Current Protection (OCP), and internal and external Over Temperature protection (I_OTP and E_OTP). The FUSB3307 IC is capable of controlling single or back-to-back N-channel MOSFETs as a load switch. Applications include wall chargers for tablet PCs and laptop batteries, AC/DC PD 3.0 compliant adapters, and DC/DC car chargers.