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RT8890是双输出3+2相PWM控制器，具有3个整合MOSFET栅极驱动器和单个SVID接口，用于CPU和GPU内核供电。本产品符合英特尔VR12 / IMVP7脉冲宽度调变规范。 RT8890采用立锜专有的G-NAVP™ (Green-Native AVP) 技术，这是一种由固定导通时间控制模式中的有限直流增益补偿器得到的。G-NAVP™使该部分成为一种易于设置的PWM控制器，可满足所有英特尔移动CPU / GPU AVP (动态电压定位) 要求。RT8890使用SVID接口控制内部8位DAC进行输出电压编程。内置高精准度DAC将VID代码转换为0V至1.52V的参考电压，并具有5mV步阶电压。控制器的系统精准度达到0.8%。RT8890的每个输出通道都可以在多相连续导通模式或单相DEM (diode emulation mode) 模式下工作，在不同的负载条件下达到最大90%的效率。可以选择droop功能 (负载线)，并通过设置误差放大器的直流增益轻松编程负载线。通过适当的补偿，负载瞬态响应可以达到优化的AVP性能。输出电压转换的转换速率通过SVID接口编程。 RT8890支援电感DCR和感测电阻电流检测、为IMVP7 CPU和GPU内核提供电源良好指示、电流监视器、热监视器和热节流输出信号。此外，还提供完整的故障保护功能，包括过压，欠压，负电压，过流，热关断和欠压锁定。
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<div class="spec-list"><ul class="lv1"><li>双道输出 : 3相 (CORE) + 2相 (GFX) </li><li>整合MOSFET驱动器 : 2 (CORE) + 1 (GFX) </li><li>VR12/IMVP7 PWM规格兼容 </li><li>串行VID接口 </li><li>G-NAVP™架构 </li><li>快速线路/负载瞬态响应 </li><li>快速响应负载瞬态 </li><li>0.5% DAC精准度 </li><li>0.8% 系统精准度 </li><li>精准的电流平衡 </li><li>可选择Droop功能 </li><li>可选择Forced DEM运作 </li><li>内建 ADC，用于基础设定 </li><li>电源良好指示 </li><li>电流监控输出 </li><li>热监控 </li><li>发热遏制指示灯 <span class="overline">VRHOT</span> </li><li>PS1相位脱落 </li><li>PS2中的相位脱落和二极管仿真 </li><li>差分远程输出电压检测 </li><li>无所电感 DCR 电流检测 </li><li>每相切换频率高达1MHz </li><li>OVP，UVP，NVP，OCP，OTP，UVLO </li><li>56 引脚 WQFN 封装 </li><li>符合 RoHS 规范，不含卤素 </li></ul></div>
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<div class="spec-list"><ul class="lv1"><li>IMVP7 Intel 内核电源 </li><li>笔记本电脑 </li><li>AVP降压型转换器 </li></ul></div>
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