Controller IC Chip - RT8857AGQW RT8857A RT8857 QFN 48 Chip for laptop - Ολοκληρωμένο τσιπ φορητού υπολογιστή (Κωδ.1-CHIP0968) 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 compensation, over voltage protection, over current protection, VRHOT sensing and IMON for various applications. RT8857/A comes to a small footprint with WQFN-48L 7x7 package.  12V Power Supply Voltage  4/3/2/1-Phase Power Conversion  2 Embedded MOSFET Drivers  Internal Regulated 5V Output  VID table for INTEL VR11.1/VR10.x and AMD K8/ K8_M2 CPUs  Continuous Differential Inductor DCR Current Sense  Adjustable Soft Start  Adjustable Frequency  Power Good Indication

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