Product Details

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