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RT1741A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達到 4.5A。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。RT1741A 的輸出電壓可用外部電阻分壓器進行設定。
輸入電壓範圍:1.8V~5.5V
可調輸出電壓範圍:1.8V~5.5V
VIN > 3.6V, VOUT = 3.3V 時,最大負載能力達 3A
以節能模式提升低功率輸出時的效率
2.4MHz 工作頻率,可被外來 2.2MHz~2.6MHz 頻率信號同步
效率高達 96%
輸入電流限制
內部補償
符合 RoHS 規範,不含鹵素
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