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RT8859M - Multi-Phase PWM Controller

Description

The RT8859M is a VR12/IMVP7 compliant CPU power controller which includes two voltage rails : a 4/3/2/1 phase synchronous buck controller, the CORE VR, and a single phase buck controller, the AXG VR.

Features

  • a quick response mechanism for optimized AVP performance during load transient. The RT8859M supports mode transition function with various operating states. A serial VID (SVID) interface is built in the RT8859M to communicate with Intel VR12/IMVP7 compliant CPU. The RT8859M 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 RT8859M varies with VID, load and input voltage to further enhance the.

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Datasheet preview – RT8859M

Datasheet Details

Part number RT8859M
Manufacturer Richtek
File Size 719.62 KB
Description Multi-Phase PWM Controller
Datasheet download datasheet RT8859M Datasheet
Additional preview pages of the RT8859M datasheet.

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Full PDF Text Transcription

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® RT8859M Multi-Phase PWM Controller for CPU Core Power Supply General Description The RT8859M is a VR12/IMVP7 compliant CPU power controller which includes two voltage rails : a 4/3/2/1 phase synchronous buck controller, the CORE VR, and a single phase buck controller, the AXG VR. The RT8859M adopts G-NAVP TM (Green Native AVP), which is Richtek's proprietary topology derived from finite DC gain compensator with current mode control, making it an easy setting PWM controller, meeting all Intel CPU requirements of AVP (Active Voltage Positioning). Based on the G-NAVPTM topology, the RT8859M also features a quick response mechanism for optimized AVP performance during load transient. The RT8859M supports mode transition function with various operating states.
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