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RT8885A Даташит - Richtek

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General Description
The RT8885A is a dual output 3-phase + 2-phase PWM controller with 3 integrated MOSFET gate drivers and a single SVID interface for CPU and GPU core power supply. This part complies with Intel VR12/IMVP7 Pulse Width Modulation Specification.

Features
● Dual Output : 3-Phase (CORE) + 2-Phase (GFX)
● Integrated MOSFET Drivers : 2 (CORE) + 1 (GFX)
● VR12/IMVP7 PWM Specification Compliant
● Serial VID Interface
● G-NAVPTM Topology
● Fast Line/Load Transient Response
● Quick Response for Load Transient
● 0.5% DAC Accuracy
● 0.8% System Accuracy
● Accurate Current Balance
● Selectable Droop Function
● Selectable Forced DEM Operation
● Built-in ADC for Platform Programming
● Power Good Indicator
● Current Monitor Output
● Thermal Monitor
● Thermal Throttling Indicator VRHOT
● Phase Shedding in PS1
● Phase Shedding and Diode Emulation in PS2
● Differential Remote Output Voltage Sense
● Lossless Inductor DCR Current Sense
● Switching Frequency up to 1MHz per Phase
● OVP, UVP, NVP, OCP, OTP, UVLO
● 56-Lead WQFN Package
● RoHS Compliant and Halogen Free

Applications
● IMVP7 Intel CPU/CPU Core Power Supply
● Laptop Computer
● AVP Step-Down Converter

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