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Product Spec Banner
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RT6576C/D 是雙通道降壓控制器，可用於電池供電系統生成系統所需電壓。它包含兩個輸出電壓 2V~5.5V 可調的 PWM 控制器和兩組輸出電壓為 5V/3.3V 的線性穩壓器，每組線性穩壓器可提供高達 100mA 的輸出電流，3.3V 線性穩壓器的輸出電壓精度在 35mA 以下負載時可達 1%。此外，它還包含一個可用於外部電荷泵電路的振盪器輸出。它還具有內建的上電時序管理、Power Good 輸出、內置軟啟動和避免在關機期間出現負電壓的輸出軟放電功能。固定電流漣波的 PWM 控制架構在工作時無需使用電流檢測電阻，還對負載瞬變具有 100ns 的快速回應能力。為了提高轉換效率，RT6576C/D 在輕載應用中會自動切入二極體模擬模式。為了避免在音訊應用中出現雜訊，它包含了音訊避開模式，該模式將開關切換頻率維持在 25kHz 以上。RT6576C/D 的封裝是 WQFN-20L 3x3。
3
RT6576C/RT6576D 電路圖
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<div class="spec-list"><ul class="lv1"><li>支援輕薄型筆記型電腦的連接待機模式 </li><li>CCRCOT 控制架構，100ns 快速回應能力 </li><li>最大責任週期 > 98% </li><li>輸入電壓範圍：5V~25V </li><li>雙通道可調節輸出: <ul class="lv2"> <li></li><li>CH1:2V~5.5V </li><li>CH2:2V~4V </li></ul> </li><li>5V/3.3V LDO 具有 100mA 負載能力 </li><li>3.3V LDO 輸出電壓精度：1% </li><li>振盪器輸出滿足電荷泵應用需求 </li><li>支援音訊避開模式 (ASM) </li><li>內部頻率設定 <ul class="lv2"> <li></li><li>300kHz/355kHz (CH1/CH2) </li></ul> </li><li>內部軟啟動和軟放電 </li><li>4700ppm/°C R<sub>DS(ON)</sub> 電流檢測 </li><li>鎘通道獨立使能控制 </li><li>內建 OVP/UVP/OCP/OTP </li><li>非鎖定欠壓保護 </li><li>Power Good 指示 </li></ul></div>
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RT6576C/RT6576D 訂購資訊
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<div class="spec-list"><ul class="lv1"><li>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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