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RT2862 是電流模式的高效同步降壓型 DC/DC 轉換器,可在 4.5V~36V 輸入電壓範圍內工作,負載能力可達 3A,其內部集成 105mΩ/80mΩ MOSFET 功率開關,具有極高的轉換效率,其電流模式的控制架構可支援快速的暫態回應與簡易的外部補償。逐週期進行電流限制保護可應對輸出端短路情形,內建的軟啟動機制則可消除啟動瞬間的輸入電流湧浪問題。它還具有完整的保護功能如輸入欠壓鎖定、輸出欠壓保護、過流保護和熱關斷保護功能。RT2862 以含有外露式散熱焊盤的 SOP-8 封裝供貨。
輸入電壓範圍:4.5V~36V
3A 負載能力
內部集成 N-MOSFET 開關
電流模式控制架構
工作頻率範圍:300kHz~1MHz
輸出電壓可調範圍:0.8V~30V
效率可達 95%
可與低 ESR 的陶瓷輸出電容配合穩定工作
逐週期電流限制保護
輸入欠壓鎖定保護
輸出欠壓保護
過熱關機保護
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