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RT8848A/B 是使用 PWM-VID 介面、性能針對高性能影像處理器應用進行了優化並支援 nVidia OVR4i+ 規格的 8/7/6/5/4/3/2/1 相同步 Buck 控制器，它採用立錡專有的以有限直流增益誤差放大器為基礎的電流模式控制架構的 AC G-NAVP<SUP>™</SUP> 控制技術，即使在電流連續模式之下的工作頻率也可根據 VID、負載和輸入電壓而自動變化以取得很好的工作效率，可支援傳統的電感電流 DCR 檢測方法或智慧功率級所直接提供的電流監測信號。</br>RT8848A/B 具有外部參考輸入端，可接受 PWM-VID 進行輸出電壓動態調節，使其輸出電壓可跟隨外部參考輸入而變化。通過其 PINSETx 引腳可對內部斜波幅度進行設定以實現對穩定性和負載瞬態回應特性的優化調節。它還具有完善的故障保護特性，其中包括過壓保護、欠壓保護、通道過流保護、輸出總電流保護和過熱保護等。
RT8848A/RT8848B 電路圖
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<div class="spec-list"><ul class="lv1"><li>多相 Buck 控制器 </li><li>PWM-VID 動態電壓控制 </li><li>支援 1.8V PWM-VID 介面 </li><li>電源狀態指示： <ul class="lv2"> <li></li><li>LPC（相數少），PSI = Low </li><li>APS（自動相數調節），PSI = Mid </li><li>HPC（相數多），PSI = High </li></ul> </li><li>接受外部參考輸入 </li><li>可用硬體進行相數（8/7/6/5/4/3/2/1）設定 </li><li>軟啟動時間可調 </li><li>工作頻率可調 </li><li>可調相間電流均衡 </li><li>支援待機模式 </li><li>UVP/OVP/OTP/SOC/CH_OC/TSEN 保護 </li><li>保護閾值可調 </li><li>Power Good 指示 </li><li>使用 ADC 採集 IMON、TSEN、VSEN 資訊 </li><li>支援通過 I<sup>2</sup>C 介面進行控制 </li><li>符合 RoHS 規範，不含鹵素 </li></ul></div>
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RT8848A/RT8848B 訂購資訊
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RT8848A/RT8848B
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RT8848A/RT8848B
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<div class="spec-list"><ul class="lv1"><li>符合 nVidia OVR4+ 規範的 GPU 內核供電 </li></ul></div>
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