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RT5733 是输入电压范围为 2.5V-5.5V、输出电压可通过工作频率可高达 3.4MHz 的 I<sup>2</sup>C 接口进行调节的 Buck 转换器。<br>通过使用专用的控制架构和同步整流，RT5733 具备持续输出 3.5A 电流的能力，负载低达 10mA 时也能维持较高的转换效率。其工作频率为 2.4MHz，所需外围元件数量少。增加输出电容可改善负载瞬变响应期间的电压调节特性而不会影响其稳定性。在中等及轻载条件下，PSM 的节能运行模式将启动。负载较大时，系统自动切入固定频率运行模式。若需器件工作于固定频率状态，可以将 PFM 设为禁止状态。RT5733 的静态耗电大约为 45μA，关机模式下的电流消耗约为 0.1μA。其出货封装形式为 WQFN-20L 3.5x3.5 和WL-CSP-15B 1.31x2.02(BSC)。
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<div class="spec-list"><ul class="lv1"><li>输出电压可调范围：0.27V-1.4V，级差 6.25V </li><li>电压变换速度可调 </li><li>工作频率：2.4MHz </li><li>快速瞬态响应 </li><li>连续电流输出能力：3.5A </li><li>输入电压范围：2.5V-5.5V </li><li>I<sup>2</sup>C 接口，工作频率可达 3.4MHz </li><li>轻载时工作于 PFM 模式以提高效率 </li><li>静态耗电：45μA（典型值） </li><li>输入欠压闭锁保护 </li><li>过热关机保护和过载保护 </li><li>Power Good 指示 </li></ul></div>
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<div class="spec-list"><ul class="lv1"><li>图形图像处理器和 DSP 应用 </li><li>硬盘驱动器和存储器 </li><li>平板和微型笔记本电脑 </li><li>智能手机 </li><li>游戏机 </li></ul></div>
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