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RT8268為允許高電壓輸入的降壓型 DC/DC 轉換器,可輸入電壓範圍4.75V至24V,輸出電流可至2A,其電流模式的操作提供快速的暫態回應與簡易的迴路穩定架構。RT8268具有可設計的緩啟動功能以因應用戶的不同需求,此外並提供了逐週期形式的限流機制與熱關斷保護功能。操作于關機模式時,只有22μA的低電流消耗。RT8268採用SOP-8與MSOP-10 (裸露焊盤)的封裝規格。
輸入電壓範圍 : 4.75V 至 24V
可調輸出電壓範圍 : 0.92V 至 16V
2A 輸出電流
22μA 的低關機電流
功率級 MOSFET : 0.18Ω
效率高達 95%
400kHz固定操作頻率
可採用低ESR的陶瓷電容做為輸出電容
可設計的緩啟動機制
熱關斷保護
逐週期的電流限制機制
符合RoHS規範與無鹵特性
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