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RT8287為具有內部整合功率級MOSFET同步降壓型 DC/DC 轉換器,可在寬輸入電壓範圍內達到3A的連續電流輸出並具有良好的負載與輸入電壓調節率。採用電流模式操作提供快速的暫態回應與簡易的迴路穩定架構。對於錯誤情況的保護包括逐週期形式的限流機制與熱關斷保護功能。可調整的緩啟動機制可有效降低輸入電源在啟動瞬間所產生的應力。RT8287所需要的外部元件數極少,提供簡便的應用方案。
3A 輸出電流
可調的緩啟動設計
120mΩ/40mΩ 的內部功率 MOSFET 開關元件
內建的補償機制減少所需外加的元件數
最高效率達90%
500kHz 固定頻率操作
熱關斷保護
逐週期的電流限制機制
4.5V 至 21V 的廣輸入電壓操作範圍
可調整輸出範圍0.808V 至 15V
採用WDFN 14-L 的封裝
符合RoHS規範與無鹵特性
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