Dual Output 3 Phase & 2 Phase Controller with
Single SVID Interface for Desktop and Notebook CPU Applications

   The NCP6132A/NCP6132B dual output three plus two phase buck solution is optimized for Intel IMVP−7 and VR12 compatible CPUs. The controller combines true differential voltage sensing, differential inductor DCR current sensing, input voltage feed−forward, and adaptive voltage positioning to provide accurately regulated power for both Desktop and Notebook applications.

FEATUREs
• Meets Intel’s VR12/IMVP7 Specifications
• Three Phase CPU Voltage Regulator, and Two Phase Auxiliary
   Voltage Regulator, with Three Internal MOSFET Drivers in Total
• Current Mode Dual Edge Modulation for Fastest Initial Response to
   Transient Loading
• Dual High Performance Operational Error Amplifier
• One Digital Soft Start Ramp for Both Rails
• Dynamic Reference Injection
• Accurate Total Summing Current Amplifier
• DAC with Droop Feed−forward Injection
• Dual High Impedance Differential Voltage and Total
   Current Sense Amplifiers
• Phase−to−Phase Dynamic Current Balancing
• “Lossless” DCR Current Sensing for Current Balancing
• Summed Thermally Compensated Inductor Current
   Sensing for Droop
• True Differential Current Balancing Sense Amplifiers
   for Each Phase
• Adaptive Voltage Positioning (AVP)
• Vin Feed Forward Ramp Slope
• Pin Programming for Internal SVID Parameters
• Over Voltage Protection (OVP) & Under Voltage
   Protection (UVP)
• Over Current Protection (OCP)
• Dual Power Good Output with Internal Delays
• Pb−free and Halide−free Packages are Available

APPLICATIONs
• Desktop & Notebook Processors