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RT8058為PWM電流模式控制的降壓型 DC/DC 轉換器,適用於定頻操作,在全負載範圍低電壓輸出漣波的應用中。輸入電壓範圍從2.6V至5.5V,可調的輸出電壓範圍0.6V至5V,輸出電流可達2A。並操作在固定頻率1.2MHz,可適用於採用價格較低廉、較小尺寸的電容與電感元件進行由單一鋰電池供電的應用電路設計中。內建的低導通阻的功率開關,增進了整體效率並減少了需要外加蕭特基二極體的必要性。RT8058藉由近100%責任週期的操作提供了低壓差轉換的應用可有效延長掌上型裝置的電池使用壽命。RT8058支持WDFN-10L 3x3的封裝規格。
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<div class="spec-list"><ul class="lv1"><li>0.6V的參考電壓允許低電壓輸出 </li><li>近100%的責任週期操作允許輸出低壓降轉換 </li><li>2A 負載電流 </li><li>< 2μA 的關機電流 </li><li>效率高達 95% </li><li>不需外接蕭特基二極體 </li><li>固定切換頻率1.2MHz </li><li>低R<sub>DS(ON)</sub> 的內部開關 </li><li>具內部補償機制 </li><li>內建緩啟動機制 </li><li>過溫保護 </li><li>短路保護機制 </li><li>10-引腳的 WDFN 封裝 </li><li>符合RoHS規範與無鹵特性 </li></ul></div>
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<div class="spec-list"><ul class="lv1"><li>Portable Instruments </li><li>Microprocessors and DSP Core supplies </li><li>Cellular Telephones </li><li>Wireless and DSL Modems </li><li>Digital Cameras </li><li>PC Cards </li></ul></div>
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