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RT5762是輸入電壓範圍為 2.5V~6V、負載能力為 2A、簡單易用的同步 Buck 轉換器,內含 0.6V 高精度參考電壓源和低 R<SUB>DS(ON)</SUB> MOSFET 功率開關,轉換效率高,以 SOT-563 (FC) 和 UDFN-6L 1.4x1 (FC) 封裝形式供貨。</br>RT5762採用改進型固定導通時間(ACOT<SUP>®</SUP>)控制架構,具有超快瞬態回應速度,週邊元件少,在整個輸入、輸出和負載範圍內具有幾乎恒定的工作頻率。在輕載時,RT5762 自動運行於 PSM 模式以維持高轉換效率,RT5762 則工作於強制 PWM 模式以滿足應用對高輸出電壓精度的要求。</br>RT5762通過對上下橋 MOSFET 流過電流的檢測實現強勁的過流保護,每個週期都進行的電流限制可防止器件在出現輸出端短路、過流或電感飽和等現象時免於受到嚴重的損壞。其內建的軟啟動功能可避免在啟動期間出現電流衝擊,還有輸入欠壓鎖定保護、輸出欠壓保護、過壓保護(RT5762)和過熱保護等功能可確保其在各種工作狀態下的安全和平穩的運行。
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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 100mΩ/70mΩ MOSFET 功率開關 </li><li>100% 占空比支援低壓差運行 </li><li>內部參考電壓精度:1% </li><li>典型工作頻率:1.2MHz </li><li>輕載時,RT5762A/C/E 以節能模式運行 </li><li>ACOT<sup>®</sup> 控制架構 </li><li>內置 1.5ms 軟啟動時間 </li><li>使能控制 </li><li>Power Good 指示 </li><li>負電流過流保護(RT5762B/D/F) </li><li>輸入欠壓鎖定保護、過壓保護、欠壓保護、逐週期電流限制保護和過熱保護 </li><li>符合 RoHS 規範,不含鹵素 </li></ul></div>
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<div class="spec-list"><ul class="lv1"><li>行動電話和手持設備 </li><li>機上盒、數據機等通訊設備 </li><li>網路設備和存儲裝置 </li><li>通用負載點低壓調節器 </li></ul></div>
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