Richtek RT6190 4-Switch Buck-Boost Controller

Richtek RT6190 4-Switch Bidirectional Buck-Boost Controller is intended for USB power delivery (USB PD). The device operates with a 4.5V to 36V wide input voltage range, and the output voltage can be programmable between 3V and 36V. The RT6190 enables a peak current mode control mechanism with the programmable constant voltage (CV) and constant current (CC) output to support USB-PD 3.0 SPR mode and 3.1 EPR mode. Furthermore, the RT6190 also features built-in charge pumps for driving external low-cost N-MOSFETs to control the power path. With an I²C-compatible interface, the RT6190 facilitates many programmable functions, including CV/CC output, switching frequency, and cable voltage drop compensation. Moreover, the RT6190 integrates complete protection options such as input UVLO, over/under voltage protection, cycle-by-cycle current limit, short circuit protection, and over-temperature protection.