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The RT3663BR is a 3 + 2 phases PWM controller, and is compliant with AMD SVI2 Voltage Regulator Specification to support both CPU core (VDD) and Northbridge portion of the CPU (VDDNB). The RT3663BR features CCRCOT (Constant Current Ripple Constant On-Time) with G-NAVP (Green-Native AVP), which is Richtek's proprietary topology. The G-NAVP makes it an easy setting controller to meet all AMD AVP (Adaptive Voltage Positioning) VDD/VDDNB requirements. The droop is easily programmed by setting the DC gain of the error amplifier. With proper compensation, the load transient response can achieve optimized AVP performance. The controller also uses the interface to issue VOTF Complete and to send digitally encoded voltage and current values for the VDD and VDDNB domains. It can operate in single phase and diode emulation mode and reach up to 90% efficiency in different modes according to different loading conditions. The RT3663BR provides special purpose offset capabilities by pin setting. The RT3663BR also provides power good indication, over-current indication (OCP_L) and dual OCP mechanism for AMD SVI2 CPU core and NB. It also features complete fault protection functions including over-voltage, under-voltage and negative-voltage protections.
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  • 3/2/1相 (VDD) +2/1/0相 (VDDNB) PWM控制器
  • 集成3组MOSFET驱动器
  • G-NAVPTM控制技术
  • 支持动态负载线和零负载线应用
  • 轻载情形进入二极管仿真模式
  • 使用SVI2接口，遵从AMD电源管理协议
  • 内建ADC，可报告输出电压和输出电流信息
  • 即时的过压、欠压、负压和欠压锁定保护
  • 可调双重过流保护机制
  • 0.5% DAC精度
  • 快速瞬态响应
  • 输出正常指示
  • 过流指示
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AMD SVI2 移动CPU 笔记本电脑
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