Multi-Phase Controller, Configurable, 4.5 V to 20 V, I2C

The NCP81233 is a multi-phase controller capable of operating as a 1, 2, 3, 4, or 6 phase controller. The device offers an I2C interface can be used for configuring the output voltage, slew rate, overvoltage and undervoltage thresholds, and input UVLO. The NCP81233 provides the PWM signal to interface to DrMOS and can support both 3.3V/5V logic. The device features remote sense for maintaining the voltage accuracy for high current designs. Differential current sense can be used for inductor DCR sensing or with the Iout signal from the DrMOS. The device allows Vout and Iout to be read out through the I2C interface.The part can be interfaced to the NCP81162 phase double circuitry to allow for operation up to 12 phases.