RT8857 Datasheet | Richtek

RT8857/A 4/3/2/1-Phase PWM Controller with Embedded Drivers for CPU Core Power Supply General Description The RT8857/A is a 4/3/2/1-phase synchronous buck controller with 2 integrated MOSFET drivers for Intel VR11.1/VR10.x and AMD K8/K8_M2 CPUs power application. RT8857/A uses differential inductor DCR current sense to achieve phase current balance and active voltage positioning. Other Features include adjustable operating frequency, adjustable soft start, power good indication, external error-amp pensation, over voltage protection, over current protection, VRHOT sensing and IMON for various applications. RT8857/A es to a small footprint with WQFN-48L 7x7 package Features - - - - -...