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RT4823N 是帶有旁通功能的 Boost 轉換器,當輸入電壓足夠高時可啟用其旁通功能,輸入電壓不足時則可啟用其升壓能力以確保負載需要,其最大負載能力在以鋰離子電池為輸入時可達 1500mA,關機電流消耗低於 1μA,可在電池供電的應用中確保系統在電池有電時得到足夠高的電壓供應,通過強制其進入旁通狀態可降低其工作消耗,有利於延長電池使用時間。其出貨封裝為 WL-CSP-9B 1.3x1.2 (BSC)。
靜態電流消耗低
啟動時間小於 400μs
僅需 3 只週邊元件:1μH 電感、0402 規格輸入電容和 0603 規格輸出電容
輸入電壓範圍:1.8V~5.5V
可工作于輸入電壓高於輸出電壓的環境
預設 Boost 模式輸出電壓為 5V
最大連續負載能力:1.3A@VOUT=5V, VIN>3.6V
效率可達 93%
支援 Boost、旁通和關機模式
內置同步續流開關
過流保護
逐週期電流限制
過壓保護
短路保護
過熱保護
WL-CSP-9B 1.3x1.2 (BSC) 封裝
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