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RT6215A/B是簡單易用的2A同步Buck轉換器，輸入電壓範圍為4.5V至24V，使用0.791V高精度參考電壓源，集成低導通電阻的MOSFET功率開關，使用TSOT-23-8 (FC) 封裝，具有極高的轉換效率。<BR>RT6215A/B使用ACOT™控制架構，具有超快速瞬態回應能力，週邊元件少，工作頻率幾乎恒定不變，不受輸入電壓、負載和輸出電壓等參數變化的影響。輕載條件下，RT6215A自動以PSM模式工作以維持高效率。RT6215B採用強制PWM方式工作，工作頻率不因負載變化而改變，可滿足高精度輸出應用的需求。<BR>RT6215A/B通過檢測上、下橋開關電流獲得強壯的過流保護特性，每個工作周的電流都受到限制，確保器件在輸出短路、過流和電感飽和等條件下都是安全的。它有外部可調的軟起動功能避免出現啟動期間的電流衝擊，具有輸入欠壓鎖定保護、輸出欠壓保護、過熱關機保護等功能確保任何條件下的安全和穩定運行。<BR>
RT6215A/RT6215B 電路圖
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<div class="spec-list"><ul class="lv1"><li>集成100mΩ/85mΩ功率開關的2A Buck轉換器 </li><li>輸入電壓範圍：4.5V至24V </li><li>輸出電壓範圍：0.791V至5V </li><li>ACOT™控制架構 </li><li>具有超快的瞬態回應速度 </li><li>無外部補償元件 </li><li>針對低ESR陶瓷輸出電容進行了優化 </li><li>0.791V±1.5%回饋參考電壓 </li><li>低靜態電流 (170μA) </li><li>上下橋均作過流保護之用 </li><li>工作模式可選 <ul class="lv2"> <li></li><li>RTT6215A支援輕載節能模式 </li><li>RT6215B支援強制PWM模式 </li></ul> </li><li>節能工作模式使用了輕載輸出紋波消減技術 </li><li>固定工作頻率：500kHz </li><li>軟起動外部可調 </li><li>輸出預偏置時啟動過程是單調的 </li><li>輸入欠壓鎖定保護 </li><li>輸出欠壓保護模式為打嗝模式 </li><li>有輸出正常指示 </li><li>含使能控制 </li><li>TSOT-23-8 (FC) 封裝 </li></ul></div>
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RT6215A/RT6215B 訂購資訊
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<div class="spec-list"><ul class="lv1"><li>機上盒 </li><li>可擕式電視機 </li><li>無線路由器 </li><li>DSL數據機 </li><li>液晶電視 </li></ul></div>
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