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RT4813A允許系統使用新的化學組成的電池,當電池電壓低於系統電源IC所需的電壓時,可以提供顯著的能量。通過結合內置的功率電晶體,同步整流和低電源電流,此IC提供了採用鋰離子電池系統一個完整的解決方案。RT4813A是一個升壓穩壓器,設計用於從單節鋰離子電池提供最小輸出電壓的應用,即使電池電壓低於系統的最小需求電壓。在升壓模式中,輸出電壓調節保證最小負載電流為2.5A。在關斷模式下的靜態電流小於1μA,從而最大程度地延長電池壽命。
CMCOT架構,當VIN接近VOUT電壓時,輸出漣波很小
單節鋰離子電池操作電壓範圍:1.8V~5.5V
可調輸出電壓:1.8V~5.5V
節能模式(PSM)
效率高達96%
輸入過電流限制
輸入/輸出過電壓保護
平均輸出電流限制可調範圍:3250mA~2500mA
內置補償電路
輸出放電
輸出短路保護
關機狀態下與負載的連接斷開
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