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RT8876B - Dual Channel PWM Controller

Description

The RT8876B is a VR12/IMVP7 compliant CPU power controller which includes two channels : a 3/2/1 phase with 3 integrated drivers synchronous Buck controller for the CORE VR, and a single phase Buck controller for the AXG VR.

Features

  • a quick response mechanism for optimizing AVP performance during load transient. The RT8876B supports mode transition function with various operating states. A serial VID (SVID) interface is built in the RT8876B to communicate with Intel VR12/IMVP7 compliant CPU. The RT8876B supports VID on-the-fly function with three different slew rates : Fast, Slow and Decay. By utilizing the G-NAVPTM topology, the operating frequency of the RT8876B varies with VID, load and input voltage to further enhance t.

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Datasheet Details

Part number RT8876B
Manufacturer Richtek
File Size 562.53 KB
Description Dual Channel PWM Controller
Datasheet download datasheet RT8876B Datasheet

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Full PDF Text Transcription

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® RT8876B Dual Channel PWM Controller with 3/2/1 Phase for CORE VR and Single Phase for AXG VR General Description The RT8876B is a VR12/IMVP7 compliant CPU power controller which includes two channels : a 3/2/1 phase with 3 integrated drivers synchronous Buck controller for the CORE VR, and a single phase Buck controller for the AXG VR. The RT8876B adopts G-NAVPTM (Green Native Adaptive Voltage Positioning), which is Richtek's proprietary topology derived from a finite DC gain compensator with current mode control, making it an easy setting PWM controller, meeting all Intel CPU requirements of AVP. Based on the G-NAVPTM topology, the RT8876B also features a quick response mechanism for optimizing AVP performance during load transient.
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