Texas Instruments TPS2583x-Q1 USB Type-C™ and BC1.2 Charging Port Controllers include a synchronous DC/DC converter. With cable droop compensation, the VBUS voltage remains constant regardless of load current. This feature ensures that connected portable devices are charged at optimal current and voltage. The TPS25832-Q1 includes high bandwidth analog switches for DP and DM pass-through switching. The TPS25833-Q1 series includes a thermistor input pin and a thermal warning flag for user-programmable thermal overload protection. The synchronous buck regulators operate with current-mode control and are internally compensated to simplify the design. A resistor on the RT pin sets the switching frequency between 300kHz and 2.2MHz. When the devices operate below 400kHz, it results in better system efficiency. Operation above 2.1MHz avoids the AM radio bands and enables the use of a smaller inductor.
