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Product Spec Banner
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RT5750A/B是簡單易用、輸入電壓範圍為2.5V~6V、負載能力為1A的同步Buck轉換器，內含0.6V高精度參考電壓源，集成低R<SUB>DS(ON)</SUB> MOSFET功率開關，使用TSOT-23-5和TSOT-23-6封裝。<BR>它採用改進型固定導通時間ACOT<SUP>®</SUP>控制架構，外部元件少，瞬態回應速度快，在全輸入、輸出和負載範圍內的工作頻率幾乎保持不變。在輕載條件下，RT5750A工作於自動PSM模式以維持高轉換效率，RT5750B工作於強制PWM模式以滿足應用對輸出電壓調整特性的需求。<BR>RT5750A/B之上、下橋同時參與電流檢測和過流保護動作，逐週期進行的電流限制可確保器件在輸出短路、過流或電感飽和時仍能安全無虞。其內建的軟啟動功能可避免啟動期間的電流衝擊。它還具有輸入欠壓鎖定保護、輸出欠壓保護和過熱保護等功能，在各種工作條件下都可確保安全和平穩的運作。
RT5750A/RT5750B 電路圖
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<div class="spec-list"><ul class="lv1"><li>輸入電壓範圍：2.5V~6V </li><li>集成120mΩ/80mΩ MOSFET功率開關 </li><li>1A負載能力，效率高達95% </li><li>低壓差應用時，占空比可達100% </li><li>1.5%精度的內部參考電壓源 </li><li>典型工作頻率為1.5MHz </li><li>輕載節能模式（RT5750A） </li><li>靜態電流消耗：25μA（典型值） </li><li>快速回應的ACOT<sup>®</sup>控制架構 </li><li>內置軟啟動時間為0.6ms </li><li>有使能輸入 </li><li>有Power Good指示（TSOT-23-6封裝） </li><li>上下橋均參與過流保護 </li><li>負向過電流保護（RT5750B） </li><li>輸入欠壓鎖定保護 </li><li>打嗝模式的輸出欠壓保護 </li><li>過熱保護 </li><li>符合RoHS規範，不含鹵素 </li></ul></div>
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RT5750A/RT5750B 訂購資訊
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RT5750A/RT5750B
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<div class="spec-list"><ul class="lv1"><li>行動電話和掌上型設備 </li><li>機上盒、纜線數據機等網通設備 </li><li>WLAN ASIC電源和存儲裝置電源 </li><li>通用負載點低壓Buck轉換器 </li></ul></div>
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