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RT8889C 是符合 VR12.5 规范的集成了3组驱动器的3相 PWM 控制器，采用立锜专有的基于有限直流增益误差放大器的电流模式控制器的 G-NAVP<sup>TM</sup> 拓扑，易于设定压降特性，符合所有 Intel CPU 对 AVP 性能的需求，有快速响应机制可在瞬变负载条件下获得优化的 AVP 性能，支持正在不同工作状态下的模式转换功能，有串行 VID 接口可与 Intel VR12.5 兼容的 CPU 进行通讯，可以快、慢和自然的电压/电流 变动率支持 VID 跳变，即使在 CCM 模式下，其工作频率也可随着 VID、负载电流和输入电压的变化而变化以提高效率。此外，它所采用的 CCRCOT (Constant Current Ripple Constant On Time) 技术可在全输入、输出范围内保持超低的输出电压涟波，内建的高精度 DAC 可将 SVID 编码转换为 0.5V~3.04V 的电压，电压级差仅为 10mV。它具有内建的高精度 ADC 可用于基础设定功能，如无负载偏移量、过流保护阈值均可如此设定。它还提供 VR Ready 输出信号，具有过压保护、欠压保护、负压保护、过流和欠压闭锁等功能。其封装为 WQFN-40L 5x5。
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<li class="mv5"> Intel VR12.5 串行 VID 接口兼容的电源管理机制</li><li class="mv5"> 3/2/1相 PWM 控制器，集成3组驱动器</li><li class="mv5"> G-NAVP<sup>TM</sup> 拓扑</li><li class="mv5"> 0.5% DAC 精度</li><li class="mv5"> 差分远程电压检测</li><li class="mv5"> 内建 ADC，用于基础设定</li><li class="mv5"> 精准的电流平衡</li><li class="mv5"> 系统热补偿 AVP</li><li class="mv5"> 轻载条件下以单相二极管仿真模式运行</li><li class="mv5"> 快速瞬态响应</li><li class="mv5"> VR Ready 指示</li><li class="mv5"> 热抑制</li><li class="mv5"> 电流监控输出</li><li class="mv5"> OVP, UVP, OCP, UVLO</li><li class="mv5"> 外部无负载偏移量设定</li><li class="mv5"> DVID 性能强化</li><li class="mv5"> 40引脚 WQFN 封装</li>
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<li class="mv5"> VR12.5 和 VR12.6 Intel 内核电源</li><li class="mv5"> 笔记本电脑/台式计算机/服务器多相 CPU 内核电源</li><li class="mv5"> AVP 降压转换器</li>
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