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RT8077 是一款高效率的同步降压型 DC/DC 转换器，可在 2.6V至5.5V 输入电压范围内工作，输出在 0.8V至5V之间可调的电压，最大可输出2A 的电流。因为使用了内部同步的低导通电阻功率开关，在得到高效率的同时还无需使用外部肖特基二极管。开关切换的工作频率是恒定的 1MHz，可达100%的占空比使之可以工作在低压差状态，因而扩展了便携式应用中的电池使用时间。使用内部补偿的电流模式控制架构赋予其优化的瞬态响应特性，可在宽阔的负载范围和输出电容下工作。它工作在 PWM 模式下以获得在很宽负载范围内的高转换效率。RT8077提供WDFN-8L 2x2封装。
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<div class="spec-list"><ul class="lv1"><li>转换效率高达95% </li><li>低 R<sub>DS(ON)</sub> 内部开关：90mΩ </li><li>工作频率可调：300kHz至2MHz </li><li>无需使用肖特基二极管 </li><li>0.8V 参考电压，容许低压输出 </li><li>PWM/PSM 工作模式 </li><li>100% 占空比支持低压差运行 </li><li>V<sub>OUT</sub>范围从0.8V至5V </li><li>输出电流最大可达2A </li><li>过热保护 </li><li>符合RoHS规范且不含卤素 </li></ul></div>
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<div class="spec-list"><ul class="lv1"><li>可携式仪器 </li><li>电池供电装置 </li><li>笔记本电脑 </li><li>IP电话 </li><li>数字相机 </li><li>GSM/EDGE功率放大器和3G/4G功率放大器动态电源偏置 </li></ul></div>
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