RT6190 4-Switch Bidirectional Buck-Boost Controller

Richtek’s RT6190 4-switch bidirectional buck-boost controller is designed for USB power delivery (USB PD). It operates with a wide input voltage range from 4.5 V to 36 V, and a programmable output voltage between 3 V and 36 V. The RT6190 implements a peak current mode control mechanism to deliver up to 100 W power with the programmable constant voltage (CV) and constant current (CC) output. It also has built-in charge pumps for driving external low-cost N-MOSFETs to control the power path.

With an I²C compatible interface, the RT6190 supports many programmable functions, including CV/CC output, switching frequency, and cable voltage drop compensation. It is fully protected with input UVLO, over/undervoltage protection, cycle-by-cycle current limit, short protection, and overtemperature protection. The RT6190 is available in a WQFN-40L 5x5 package.