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RT9261B 是利用CMOS工藝製作的具有超低電源消耗的 Boost 架構 VFM DC/DC 轉換器產品系列,適用於電池供電的儀器設備中。RT9261B將振盪器、VFM 控制電路、開關電晶體、參考電壓、誤差放大器、電壓檢測電阻、開關保護電路等集成於單一IC中,最少僅需使用3顆外部元件即可構成一個低漣波、高效率的升壓電路。EN是IC的使能端,利用它可使晶片在待機狀態下僅消耗最大 0.5μA 的電流。
RT9261B 電路圖
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<div class="spec-list"><ul class="lv1"><li>外部元件極少(僅需電感、二極體和電容即可) </li><li>超低輸入電流(開關不動作時僅 5μA) </li><li>使用內部開關時的供電能力可達 50mA </li><li>高輸出電壓精度:±2% </li><li>低漣波、低雜訊 </li><li>低啟動電壓: 0.8V@1mA </li><li>使用低成本電感時,效率可達 80% </li><li>低溫漂移:+50ppm/°C </li><li>SOT-89 和 SOT-23-5 的封裝 </li><li>符合 RoHS 規範,不含鹵素 </li></ul></div>
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RT9261B 訂購資訊
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RT9261B
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RT9261B
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<div class="spec-list"><ul class="lv1"><li>Power source for battery-powered equipment </li><li>Power source for cameras, camcorders, VCRs, PDAs, pagers, electronic data banks, and hand-held communication equipment </li><li>Power source for appliances, which require higher voltage than that of batteries used in the appliances </li></ul></div>
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