General Description
The MAX17411/MAX17511/MAX17511C/MAX17511N/MAX17511T are dual-output, step-down, constant on-time Quick-PWMK controllers for VR12/IMVP-7 CPU core supplies. The controllers consist of two high-current switching power supplies for CPU and GFX cores. The CPU regulator (regulator A) is a three-phase constant on-time architecture. The GFX regulator (regulator B) is also constant on-time architecture. The MAX17411 supports 2-phase operation and the MAX17511/MAX17511C/MAX17511N/MAX17511T support 1-phase operation. The MAX17411/MAX17511/MAX17511C/MAX17511N/MAX17511T include two internal drivers on regulator A and one internal driver on regulator B. External drivers such as the MAX17491 enable the additional phases

FEATUREs
Intel VR12/IMVP-7-Compliant Serial Interface
3-/2-/1-Phase Quick-PWM CPU Core Regulator Two Internal Drivers and One External Driver Transient-Phase Overlap Mode Dynamic Phase Selection
2-/1-Phase Quick-PWM GFX Regulator One Internal and One External Driver
Active Overshoot Suppression
8-Bit VR12/IMVP-7 DAC
±0.5% VOUT Accuracy Over Line, Load, and Temperature
Active Voltage Positioning with Programmable Gain
Accurate Lossless Current Balance
Accurate Droop and Current Limit
Remote Output and Ground Sense
Power-Good Window Comparators (POKA and POKB)
4.5V to 24V Battery-Input Voltage Range
Programmable 200kHz to 600kHz Switching Frequency
External Thermal-Fault Detection Output (VR_HOT#)
Overvoltage (MAX17411/MAX17511/MAX17511C/MAX17511N), Undervoltage, and Thermal-Fault Protection
Slew-Rate Controlled Soft-Start
Passive Soft-Shutdown (20I Discharge Switches)
Integrated Boost Switches
Low-Profile, 48-Lead/40-Lead TQFN Packages

APPLICATIONs
VR12/IMVP-7 CPU Core Power Supplies
Notebooks/Desktops/Servers