Controllers | NCP81246

用于 IMVP8 的三轨多相降压控制器

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概览

NCP81246 是一款 3 轨多相降压方案，适用于兼容 Intel IMVP8 的 CPU。它包含两相和两个单相轨，支持以下配置中的核芯、GT 和 SA：2ph-1ph-1ph、1ph-2ph-1ph 和 1ph-1ph-1ph。该零件适用于笔记本和超极本电脑应用。 该两相控制器组合了真正的差分电压感应、差分直感 DCR 电流感应、输入电压前馈和自适应电压定位，可提供准确调节的电源。 两个单相控制器可用于核芯、GT 或 SA 轨。 均利用了安森美半导体的专利高性能 RPM 运行。RPM 控制最大程度提高了瞬变响应性能，可实现非连续频率缩放运行和连续模式全功率运行之间的平滑转换。 单相轨具有超低偏移电流监控放大器，带有可编程偏移补偿，用于超高准确性电流监控。NCP81246 提供三个内部 MOSFET 驱动器，和一个外部 PWM 信号。

  • Embedded Systems
  • 3 Internal Drivers
  • High performance RPM control system
  • Dual Edge Modulation for multiphase rails
  • Dynamic VID Feed-Forward
  • Adaptive Voltage Positioning (AVP)
  • Switching Frequency Range of 300 kHz – 750 kHz
  • Phase to Phase dynamic current balance

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MSL Temp (°C)

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VCC Min (V)

VCC Max (V)

fSW Typ (kHz)

Reference Price

NCP81246MNTXG

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Active

CAD Model

Pb

A

H

P

QFN-52

485BE

1

260

REEL

2500

Y

Step-Down

1/2

Voltage Mode

4.75

5.25

300 - 750

$1.2565

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