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Product Spec Banner
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RT8237K 是用於將筆記型電腦電池高電壓轉換為低電壓供 CPU 內核、I/O 介面、記憶體等使用的 Buck 控制器，具有效率高、瞬態回應特性好、輸出電壓精度高等特性，它採用 COT 固定導通時間控制架構，能輕鬆應對輸入、輸出電壓比很寬的應用，對負載瞬變提供 100ns 級的及時回應，同時還能保持其工作頻率基本不變。</br>RT8237K 無需使用傳統電流模式 PWM 控制器需要使用的電流檢測電阻，降低了成本，提高了效率。輕載時，擁有大型同步整流 MOSFET 開關的驅動器進入二極體模擬模式工作，進一步提升了效率表現。它有預設的工作頻率可供選擇，減少了新設計的工作量。其應用目標是為工作電壓最低達 0.7V 的 CPU 內核、晶片組、記憶體等電路供電。其出貨封裝形式為 VQFN-16L 3x3。
RT8237K 電路圖
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<div class="spec-list"><ul class="lv1"><li>輸入電壓範圍：4.5V-26V </li><li>輸出電壓範圍：0.7V-3.3V </li><li>內建 0.5% 精度 0.7V 參考電源 </li><li>100ns 負載階躍回應 </li><li>使用溫度係數為 4700ppm/°C 的電流源對電流檢測用 R<sub>(DS)ON</sub> 進行補償 </li><li>下橋電流限制閾值可調 </li><li>4 個可選工作頻率 </li><li>軟啟動控制 </li><li>可驅動大型同步整流 MOSFET </li><li>集成自舉開關 </li><li>內建過壓保護、過流保護和欠壓閉鎖保護 </li><li>過熱關機保護 </li><li>Power Good 指示 </li></ul></div>
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RT8237K 訂購資訊
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RT8237K
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RT8237K
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<div class="spec-list"><ul class="lv1"><li>筆記型電腦 </li><li>CPU 內核電源 </li><li>工作電壓低達 0.7V 的晶片組、記憶體電源 </li><li>通用 DC-DC 電源 </li></ul></div>
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