The RICHTEK IC is high quality!  Intel IMVP8 Serial VID Interface Compatible Power Management States
 2/1 Phase (MAIN VR) + Single Phase (Auxiliary VR)
+ Single Phase (VCCSA VR) PWM Controller
 1 Embedded MOSFET Driver at the MAIN VR, 1 Embedded MOSFET Driver at the Auxiliary VR, and
Embedded MOSFET Driver at the VCCSA VR
 G-NAVPTM (Green Native Adaptive Voltage Positioning) Topology
 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 or Single Phase Operation
 Fast Transient Response
 VR Ready Indicator
 Thermal Throttling
 Current Monitor Output
 OVP, OCP, NVP, UVLO
 Slew Rate Setting/Address Flip Function
 DVID Enhancement
Applications
 IMVP8 Intel Core Supply
 Notebook/ Desktop Computer/ Servers Multi-Phase CPU Core Supply
 AVP Step-Down Converter