ADP3197 - 6-Bit Programmable 2-/3-Phase Synchronous Buck Controller

The ADP31971 is a highly efficient multiphase synchronous buck switching regulator controller optimized for converting a 12 V main supply into the core supply voltage required by high performance, Advanced Micro Devices, AMD processors.

• Selectable 2-phase and 3-phase operation at up to 1 MHz per phase ±10 mV worst-case differential sensing error over temperature Logic-level PWM outputs for interface to external high power drivers Enhanced PWM flex mode for excellent load transient performance Active current balancing between all output phases Built-in power good/crowbar blanking that supports on-the-fly VID code changes Digitally programmable 0.3750 V to 1.55 V output Programmable short-circuit protection with programmable latc.