General Description

The RT8856 is a single/dual phase PWM controller with two integrated MOSFET drivers. Moreover, it is compliant with Intel IMVP6.5 Voltage Regulator Specification to fulfill its mobile CPU Vcore power supply requirements. The RT8856 adopts NAVPTM(Native AVP) which is Richteks proprietary topology derived from finite DC gain compensator peak current mode, making it an easy setting PWM controller that meets all Intel AVP (Active Voltage Positioning) mobile CPU requirements.

Features

● 1/2 Phase PWM Controller with 2 Integrated

MOSFET Drivers

● IMVP6.5 Compatible Power Management States

(DPSRLVR, PSI, Extended Deeper Sleep Mode)

● NAVP (Native AVP) Topology

● 7-bit DAC

● 0.8 DAC Accuracy

● Fixed VBOOT (1.1V)

● Differential Remote Voltage Sensing

● Programmable Output Transition Slew Rate Control

● Accurate Current and Thermal Balance

● System Thermal Compensation AVP

● Ringing Free Mode at Light Load Conditions

● Fast Transient Response

● Power Good

● Clock Enable Output

● Thermal Throttling

● Current Monitor Output

● Switching Frequency up to 1MHz Per Phase

● OVP, UVP, NVP, OCP, OTP, UVLO

● 40-Lead WQFN Package

● RoHS Compliant and Halogen Free

Applications

● IMVP6.5 Core Supply

● Multi-phase CPU Core Supply

● AVP Step-Down Converter

● Notebook/ Desktop Computer/ Servers