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RT6154 是高效率的單電感 Buck-Boost 轉換器,可在電池之類的寬輸入電壓範圍內工作,解決輸入電壓可能高於、也可能低於輸出電壓的問題,電流輸出能力可達 4A,開關電流峰值限制典型值在V<sub>IN</sub> = 3.6V時達到 5A,V<sub>IN</sub> = 2.1V時達到 2.6A。</br>無論處於 Buck 模式或 Boost 模式,其回授迴路的補償都在內部予以實現;兩個模式之間的轉換是平順無衝擊的;其瞬態響應特性是經過優化的。它以 2.4MHz 工作頻率進行全同步的操作,僅在低功率輸出時才進入 PSM 模式以提高效率,但這是可以被禁止的。它也可以被強制地與外部時鐘進行同步操作,該同步信號的頻率可在 2.2MHz~2.6MHz 之間。RT6154 的輸出電壓可用外部電阻分壓器進行設定,但 RT6154 的輸出電壓就是內部固定的,其值為 3.3V 。
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<div class="spec-list"><ul class="lv1"><li>輸入電壓範圍:1.8V~5.5V </li><li>可調輸出電壓範圍:1.8V~5.5V </li><li>V<sub>IN</sub> > 3.6V, V<sub>OUT</sub> = 3.3V 時,最大負載能力達 3A </li><li>以節能模式提升低功率輸出時的效率 </li><li>2.4MHz 工作頻率,可被外來 2.2MHz~2.6MHz 頻率信號同步 </li><li>效率高達 96% </li><li>輸入電流限制 </li><li>內部補償 </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 </li><li>可擕式硬碟驅動器 </li><li>PDA </li></ul></div>
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