Description

This reference design is the USB Type-C® power delivery for personal electronics or automotive applications: where a USB power delivery (USB PD) supported buck-boost converter is used to generate a wide range output voltage. The TPS55288 is a synchronous buck-boost converter used to convert 12-V auto-battery voltage or 19-V adaptor voltage into USB-PD power supply rails. The TPS65987DH is a stand-alone USB Type-C and PD controller with integrated power path: which can automatically set the output of TPS55288 through an I2C interface based on the PD negotiation results. The output specifications are designed to be 5-V to 20-V: 5-A maximum continuous current under 19-V adaptor input and 3-A maximum continuous current under 12-V battery input for considering efficiency and thermal.