CHL8318-20

Digital Multi-Phase Buck Controller CHL8318-20 FEATURES  Intel VR11.x compliant Digital PWM Controller  Programmable 1-phase to 8-phase operation  Customized Digital Over-Clocking features an easy-to-use SMBus Gamer command and a Gamer VID control up to 2.3V, Gamer Vmax, VID Override or Track, Digital Load-Line Adjust, Gamer OC/OVP, Gamer OFF pin and Gamer OTP  IR Efficiency Shaping features a Variable Gate Drive and Dynamic Phase Control  1-phase to 4-phase PSI for Light Loads  Adaptive Transient Algorithm minimizes capacitors  Designed for use with coupled inductors  Enables Thermal Phase Balancing  SMBus Fault Indicators: OVP, UVP, OCP, OTP  SMBus interface for configuring and monitoring; SMBus commands include monitoring input current and power  Compatible with IR ATL Drivers and tri-state Drivers  9 bytes of NVM storage available for customer use  +3.3V supply voltage; 0ºC to 85ºC Ambient operation  RoHS Compliant, MSL level 1 package APPLICATIONS  Intel® VR11.x CPU VRD and VRM; DDR Memory  High Performance Desktops and Servers  Over-clocking and High-Efficiency Application BASIC APPLICATION DESCRIPTION The CHL8318-20 is an 8-phase digital synchronous buck controller for core regulation of high-performance Intel® VR11.1 and VR11.0 platforms. The CHL8318-20 is fully compliant with VR11.1 including Power Status Indicator (PSI) and for improved light load efficiency and accurate current output (IMON). The IR CHL8318-20 includes a customized set of digital...