Controllers | NCP81611

PWM_VID および I2C インタフェース搭載 4/3/2/1 多相降圧コントローラ

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Overview

NCP81611 は、新世代のコンピューティング/グラフィック・プロセッサ向けに最適化された多相同期コントローラです。このデバイスは、最大 4 相まで駆動でき、差動電圧と位相電流センシング、適応型電圧位置決め、および PWM_VID インタフェースを内蔵し、コンピュータまたはグラフィック・コントローラ向けの正確に調整された電源を提供します。内蔵の省電力インタフェース (PSI) により、プロセッサで、例えば全相オン、動的位相開口、または固定低位相カウント・モードの 3 モードのうち 1 モードにコントローラを設定して、軽負荷状態での高効率を得られます。デュアル・エッジ PWM 多相アーキテクチャにより、高速の過渡応答と良好な動的電流バランスを保証します。

  • GPU and CPU Power
  • Graphic Cards
  • Desktop, Notebook, Sever systems
  • Graphic Cards
  • Desktop, Notebook, Sever systems
  • Compliant with NVIDIA OVR4i+ Specifications
  • Supports up to 4 Phases
  • 2.8 V to 20 V Supply Voltage Range
  • 250 kHz to 1.2 MHz Switching Frequency (4 Phase)
  • Per Phase Over Current Limiting (OCL)
  • System Over Current Protection (OCP)
  • Over Voltage Protection (OVP)
  • Under Voltage Protection (UVP)
  • Phase−to−Phase Dynamic Current Balancing
  • Current Mode Dual Edge Modulation for Fast Initial Response toTransient 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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