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Product Spec Banner
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RT8845B是针对高性能影像处理器和电脑应用进行了优化处理的4/3/2/1相同步Buck PWM控制器，采用了立锜特有的基于有限直流增益误差放大器的电流模式控制技术的G-NAVP<SUP>TM</SUP> (Green Native AVP) 控制架构，工作频率可随VID输入、负载和输入电压而变，即使在CCM模式下工作也可有效提升转换效率，并另有与G-NAVP<SUP>TM</SUP>架构结合在一起的CCRCOT (Constant Current Ripple COT，固定电流纹波COT) 技术可在整个输入、输出范围内提供超低的输出电压纹波水准。此外，它还具有完善的故障保护功能，如过压保护、负压保护、过流保护和欠压锁定保护。RT8845B的封装形式为WQFN-32L 4x4。</br>RT8845B采用外部输入参考电压和PWM-VID动态输出电压控制技术，其回馈电压总是被调节至与其外部参考输入相等的水准，它还具有工作频率可调、相数动态可控、内/外软起动控制、Power Good指示、使能控制等功能。
RT8845B 电路图
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productDetailSection
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<div class="spec-list"><ul class="lv1"><li>多相PWM控制器 </li><li>电源状态指示 <ul class="lv2"> <li></li><li>1P-CCM/4P-CCM/1P-DEM </li></ul> </li><li>支援1.8V PWM-VID介面 </li><li>外部参考输入控制方式 </li><li>动态PWM-VID电压控制方式 </li><li>相数动态控制 </li><li>内/外软起动控制 </li><li>电流限制阈值可调 </li><li>工作频率可调 </li><li>欠压保护，过压保护 </li><li>支援超低输出电压作为待机电压 </li><li>热关机保护 </li><li>Power Good指示 </li></ul></div>
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productFeatureSection
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orderingDetailSection
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RT8845B 订购信息
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technical-documents
RT8845B
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RT8845B
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<div class="spec-list"><ul class="lv1"><li>符合nVidia OVR4+规范的GPU内核供电 </li></ul></div>
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keywordList
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applicationSection
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i18n(support-card-item.sales.title)
i18n(support-card-item.sales.description)
i18n(support-card-item.sales.learn-more-text)
i18n(support-card-item.sales.url)
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supportSection