Controllers | NCP5381
概览
NCP5381 是一款两相、三相或四相降压控制器，它结合了差分电压和电流感应以及自适应电压定位，可为 Intel 要求最高的 Pentium IV 处理器和低电压、高电流电源供电。 双缘脉宽调制 (PWM) 结合电感器电流感应，可针对瞬变负载提供最快的初始响应，因此为满足瞬变负载线路要求所需的大输出电容和陶瓷输出电容更少，降低了系统成本。
- Pentium IV Processors
- VRM Modules
- Graphics Card
- Dual-Edge PWM for Fastest Initial Response to Transient Loading
- High Performance Operational Error Amplifier
- Supports both VR11 and Legacy VR10 Soft-Start Modes
- Dynamic Reference Injection (Patent Pending)
- DAC Range from 0.5V to 1.6V
- +/- 0.5% System Voltage Accuracy
- Remote Temperature Sensing per VR11
- Remote Temperature Sensing per VR11
- 2,3, or 4-Phase Operation
- True Differential Remote Voltage Sensing Amplifier
- Phase-to-Phase Current Balancing
- Lossless Differential Inductor Current Sensing
- Differential Current Sense Amplifiers for each Phase
- Adaptive Voltage Positioning
- Fixed No-Load Voltage Positioning at -15mV
- Frequency Range: 100kHz-1.0MHz
- Latched Overvoltage Protection (OVP)
- Threshold Sensitive Enable Pin for VTT Sensing
- Power Good Output with Internal Delays
- Programmable Soft-Start Time
- Operates from 12V
- Low Voltage, High Current Power Supplies
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