The ISL68200/01 has an industry standard PMBus interface. PMBus provides an easy to use two-wire interface (I2C/SMBus based) that allows users to monitor supply telemetry, including real time input voltage, output voltage, load current, and temperature information. The output voltage setpoint can also be changed on the fly, and fault reporting, such as Vout OV/UV, output over current and power stage over temperature, can all be monitored. Using PMBus supply parameters, such as switching frequency, light load efficiency modes and Vout transition rate can be changed on the fly without the need to use a soldering iron. In applications where PMBus is not required, these pins can be left floating – PMBus communication is an optional feature.