RT8859M Datasheet PDF - Richtek

●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™ (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).

●Features

●4/3/2/1 + 1 Phase PWM Controller

●G-NAVP™ Topology

●Serial VID Interface

●0.5% DAC Accuracy

●Differential Remote Voltage Sensing

●Built-in ADC for Platform Programming

●Accurate Current Balance

●System Thermal Compensated AVP

●Diode Emulation Mode at Light Load Condition for

●Multiple and Single Phase

●Fast Transient Response

●VR12 / IMVP7 Compatible Power Management States

●VR Ready Indicator

●Thermal Throttling

●Current Monitor Output

●Switching Frequency up to 1MHz per Phase

●OVP, UVP, OCP, NVP, UVLO

●Slew Rate Setting/Address Flip Function

●External No-Load Offset Setting for both Rails

●DVID Improvement

●Small 56-Lead WQFN Package

●RoHS Compliant and Halogen Free