Multiphase synchronous controller optimized with PWM_VID and I2C Interfacefor new generation computing and graphics processors.

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Overview

The NCP81610 is a multiphase synchronous controller optimizedfor new generation computing and graphics processors. The device iscapable of driving up to 8 phases and incorporates differential voltageand phase current sensing, adaptive voltage positioning andPWM_VID interface to provide and accurately regulated power forcomputer or graphic controllers. The integrated power savinginterface (PSI) allows for the processors to set the controller in one ofthree modes, i.e. all phases on, dynamic phases shedding or fixed lowphase count mode, to obtain high efficiency in light−load conditions.The dual edge PWM multiphase architecture ensures fast transientresponse and good dynamic current balance.

  • GPU and CPU Power
  • Graphic Cards
  • Desktop and Notebook Applications
  • Desktop and Notebook Systems
  • Compliant with NVIDIA OVR4i+ Specifications
  • Supports up to 8 Phases
  • 2.8 V to 20 V Supply Voltage Range:
  • 250 kHz to 1.2 MHz Switching Frequency (8 Phase)
  • Under Voltage Protection (UVP)
  • Over Voltage Protection (OVP)
  • Per Phase Over Current Limiting (OCL)
  • System Over Current Protection (OCP)
  • Startup into Pre−Charged Loads while Avoiding False OVP
  • Configurable Load Line
  • True Differential Current Balancing Sense Amplifiers for Each Phase
  • Phase−to−Phase Dynamic Current Balancing
  • Current Mode Dual Edge Modulation for Fast Initial Response to Transient Loading
  • Power Saving Interface (PSI)
  • Automatic Phase Shedding with User Settable Thresholds
  • PWM_VID and I2C Control Interface
  • 40 Pin QFN Package (5 x 5 mm Body, 0.4 mm Pitch)
  • Pb−Free and are RoHS Compliant

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