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Product Spec Banner
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RT6576F是供電池供電系統使用的雙通道降壓控制器，由輸出電壓2V~5.5V可調的兩組PWM控制器和分別輸出5V/3.3V的兩個線性穩壓器構成，每個線性穩壓器的輸出能力為100mA，3.3V線性穩壓器的輸出精度在35mA以下時為1%。它還包含一個振盪器輸出可用於驅動外部電荷泵電路的工作，還具有上電時序控制、Power Good指示、內置軟起動等設計，還有可避免在關機期間出現負電壓的輸出端軟放電功能。</br>PWM控制器採用恒定電流紋波控制架構，無需使用電流檢測電阻，可提供100ns負載瞬態回應能力。為了提高效率，RT6576F在輕載時自動進入二極體模擬模式工作。為避免在音訊應用中出現雜訊，它包含有音訊避開模式，可將工作頻率維持在25kHz以上。</br>RT6576F以WQFN-20L 3x3封裝形式供貨。
RT6576F 電路圖
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<div class="spec-list"><ul class="lv1"><li>支援超級本連線待機模式 </li><li>CCRCOT控制架構，具有100ns負載階躍回應能力 </li><li>最大占空比 > 98% </li><li>輸入電壓範圍：5V~25V </li><li>輸出電壓可調範圍 <ul class="lv2"> <li></li><li>CH1：2V~5.5V </li><li>CH2：2V~4V </li></ul> </li><li>5V/3.3V線性穩壓器負載能力為100mA </li><li>3.3V線性穩壓器輸出精度為1% </li><li>振盪器輸出可用於電荷泵電路驅動 </li><li>支援音訊避開模式 </li><li>內部頻率設定： <ul class="lv2"> <li></li><li>300kHz/355kHz (CH1/CH2) </li></ul> </li><li>內置軟起動和軟放電功能 </li><li>4700ppm/°C R<sub>DS(ON)</sub> 電流檢測 </li><li>各通道獨立的使能控制 </li><li>內建OVP/UVP/OCP/OTP </li><li>不鎖定的欠壓鎖定保護 </li><li>Power Good指示 </li></ul></div>
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RT6576F 訂購資訊
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RT6576F
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RT6576F
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<div class="spec-list"><ul class="lv1"><li>筆記型電腦和類筆記型電腦 </li><li>系統電源 </li><li>2~4節鋰離子電池供電的設備 </li></ul></div>
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