Datasheet4U Logo Datasheet4U.com

NCP81274 Datasheet 8/7/6/5/4/3/2/1 Phase Buck Controller

Manufacturer: onsemi

📥 Download Datasheet

Overview

NCP81274 8/7/6/5/4/3/2/1 Phase Buck Controller with PWM_VID and I2C Interface The NCP81274 is a multiphase synchronous controller optimized for new generation computing and graphics processors.

The device is capable of driving up to 8 phases and incorporates differential voltage and phase current sensing, adaptive voltage positioning and PWM_VID interface to provide and accurately regulated power for computer or graphic controllers.

The integrated power saving interface (PSI) allows for the processors to set the controller in one of three modes, i.e.

Key Features

  • Compliant with NVIDIA® OVR4+ Specifications.
  • Supports Up to 8 Phases.
  • 4.5 V to 20 V Supply Voltage Range.
  • 250 kHz to 1.2 MHz Switching Frequency (8 Phase).
  • Power Good Output.
  • Under Voltage Protection (UVP).
  • Over Voltage Protection (OVP).
  • Over Current Protection (OCP).
  • Per Phase Over Current Protection.
  • Startup into Pre-Charged Loads while Avoiding False OVP.
  • Configurable Adaptive Voltage Positioni.

More Datasheets from onsemi

Part Number Description
NCP81278 Compact 2-Phase Synchronous Buck Controller
NCP81228 8 + 2 Phase Output Controller
NCP81230H Precise Low Voltage Synchronous Buck Controller
NCP81232 Dual-Channel/Multi-Phase Controller
NCP81234 Dual-Channel/Two-Phase Controller
NCP81239 USB Power Delivery 4-Switch Buck Boost Controller
NCP81239A USB Power Delivery 4-Switch Buck Boost Controller
NCP81242 Single-Phase Voltage Regulator
NCP81243 Dual Output 3 & 2 Phase Controller
NCP81245 Three-Rail Output Controller