XDP™ 16-phase dual loop PWM digital multiphase controller The XDP™ XDPE132G5H is a digital multi-phase buck controller that can be configured in single or dual loop mode and is optimized to support high performance processors that require AVSBus, AMD SVI2, or nVIDIA PWMVID. It supports up to 16 phases that can be flexibly assigned between the two loops. It offers digitally programmable load line thereby eliminating external load line components.