NCP81174N: Multi-Phase Synchronous Buck Controller with Power Saving Mode and PWM VID Interface

Description: The NCP81174N is a general−purpose up to four−phas...
  • The NCP81174N is a general−purpose up to four−phase synchronous buck controller. It combines differential voltage sensing, differential phase current sensing, and PWM VID interface to provide accurate regulated power for the computer or graphic controllers. It can receive power saving command (PSI) from processors and operates in single−phase diode emulation mode to obtain high efficiency in light load. Dual−edge multiphase PWM modulation ensures a fast transient response with minimum possible capacitors.
  • Features
  • Output Voltage up to 2.0V with PWM VID Interface - Compatible to OVR4 GPU vcore power requirement
  • Support 1.8V VID interface - For latest GPU generation
  • Remote Differential Output Voltage Sense - Accurate vcore output voltage
  • Thermally Compensated Current Monitoring - Constant loadline regulation over the temperature
  • Differential Current Sense For Each Phase - Accurate current sensing
  • Power Saving Interface (PSI) - Increased power efficiency
  • 200kHz ~ 1000kHz Switching Frequency - Programmable switching frequency
  • PWMVID frequency up to 5MHz - Fast PWMVID and output change
  • Over Current Protection
  • Fast Transient Response
  • Latched OVP and UVP Protections
  • Applications
  • GPU and CPU Power
  • Graphics Card Applications
  • End Products
  • Notebook
  • Graphic Cards
  • AIO Products
  • Technical Documentation & Design Resources
    Availability and Samples
    NCP81174NMNTXG
  • Status: Active
  • Compliance: Pb-free Halide free 
  • Description: Multi-Phase Synchronous Buck Controller with Power Saving Mode and PWM VID Interface, 4/3/2-Phase Synchronous Buck Controller with Power Saving Mode and PWM VID Interface
  • Package Type: QFN-32
  • Package Case Outline: 488AM
  • MSL: 3
  • Container Type: REEL
  • Container Qty: 2500
  • Specifications
  • Topology:  
  • Phases:  
  • Control Mode:  
  • VCC Min (V):
  • VCC Max (V):
  • fSW Typ (kHz): 200 - 1000 
  • Package Type: QFN-32 
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