Controllers | NCP81243

IMVP8 用多相降圧コントローラ

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NCP81243 多相降圧ソリューションは Intel IMVP8 互換 CPU 向けに最適化されており、3/2/1+ 2/1 相のユーザー構成と、 4+1 を実行するオプションがあります。真差動電圧センサ、差動インダクタ DCR 電流センサ、入力電圧フィードフォワード、適応型電圧ポジショニングを組み合わせて、デスクトップ・アプリケーション用の正確な調整電力を提供します。制御システムはデュアルエッジ・パルス幅変調 (PWM) と DCR 電流センサとの組み合わせに基づいており、低システム・コストで動的負荷イベントへの初期応答が最速になります。

  • Industrial Servers
  • Embedded Systems Power Management

  • Meets Intel's IMVP8 Specification
  • Current Mode Dual Edge Modulation for Fast Initial Response to Transient Loading
  • Dual High Performance Operational Error Amplifier
  • One Digital Soft Start Ramp for Both Rails
  • Dynamic Reference Injection® (Patent #US07057381)
  • Accurate Total Summing Current Amplifier(Patent #US006683441)
  • DAC with Droop Feed-forward Injection(Patent Pending)
  • Dual High Impedance Differential Voltage and Total Current Sense Amplifiers
  • Phase-to-Phase Dynamic Current Balancing
  • “Lossless” DCR Current Sensing for Current Balancing
  • Summed Compensated Inductor Current Sensing for Droop
  • True Differential Current Balancing Sense Amplifiers for Each Phase
  • Adaptive Voltage Positioning (AVP)
  • Switching Frequency Range of 200KHz – 1.5MHz
  • Startup into Pre-Charged Loads while avoiding False OVP
  • Vin Feed Forward Ramp Slope
  • Over Voltage Protection (OVP) & Under Voltage Protection (UVP)
  • Over Current Protection (OCP)
  • Dual Power Good Output with Internal Delays

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NCP81243MNTXG

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CAD Model

Pb

A

H

P

QFN-52

485BE

1

260

REEL

2500

Y

Step-Down

1/2/3

Voltage Mode

4.75

5.25

300 - 1200

$1.3665

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Die Related Summary Data

Device: NCP81243MNTXG

Equivalent to wafer fab process: ONC25

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等価デバイス時間

MTBF/MTTF (時間)

FITS

ONC25

1

2712519294

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Re-calculate Data

Data is based on the following assumptions.

Note: The temperature and confidence level may be adjusted to your requirements.

Disclaimer: A reliability FIT rate calculated using this tool shall not be used for any functional safety purpose. In case a raw FIT rate needs to be estimated for a component which is targeted to be used in a safety critical application (i.e. compliant to ISO 26262 standard) it should be calculated according to generic safety standards (IEC62380, IEC61709, SN29500, FIDES, etc.)

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