ADP3189
FEATURES
Selectable 2-, 3-, 4-, or 5-phase operation at up to 1 MHz per phase ±7.7 m V worst-case differential sensing error over temperature Logic-level PWM outputs for interface to external high-power drivers Active current balancing between all output phases Built-in power good/crowbar blanking supports on-the-fly VID code changes Digitally programmable 0.5 V to 1.6 V output- supports both VR10.x and VR11 specifications Programmable short-circuit protection with programmable latch-off delay
This device uses a multi-mode PWM architecture to drive the logic-level outputs at a programmable switching frequency that can be optimized for VR size and efficiency. The phase relationship of the output signals can be programmed to provide 2-, 3-, 4-, or 5-phase operation, allowing for the construction of up to five plementary buck switching stages. The ADP3189 also includes programmable no-load offset and slope functions to adjust the output voltage as a function of the load current, so it is...
