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RT2872為高效率,電流模式操作的同步降壓型 DC/DC 轉換器,在輸入電壓範圍4.5V至36V間,可輸出電流達3A。整合了高端105mΩ 與80mΩ 低端的MOSFET以達到95%的高轉換效率。電流模式的控制架構可支援快速的暫態回應與簡易的補償方式。逐週期形式的限流機制可在輸出短路時提供電路保護作用,內建的緩啟動機制則可消除啟動瞬間的輸入電流湧浪的問題。此外RT2872提供了完整的保護功能,例如輸入低電壓鎖定機制,輸出低電壓保護、過電流保護與與熱關斷保護功能。RT2872提供SOP-8(裸露焊盤)封裝。
4.5V 至36V輸入電壓範圍
3A 輸出電流
內建 N-MOSFET 開關元件
電流模式控制
操作頻率 : 300kHz至1MHz
可調輸出電壓範圍 0.8V至30V
效率高達 95%
可採用低ESR的陶瓷電容做為輸出電容
逐週期的過電流保護
輸入欠電壓鎖定機制
輸出欠電壓保護
熱關斷保護
AEC-Q100 Grade 3 認證
符合RoHS規範與無鹵特性
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