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RT5752是可在 2.5V~6V 输入电压范围内工作、负载能力为 2A、简单易用的同步 Buck 转换器,它内建精确的 0.6V 参考电压和低 R<SUB>DS(ON)</SUB> 的 MOSFET 功率开关,具有极高的转换效率,使用了 TSOT-23-5、TSOT-23-6 和 WDFN-6L 2x2 封装。</br>RT5752采用改进型固定导通时间(ACOT<SUP>®</SUP>)控制架构,无需外部补偿元件而具有超快速的瞬态回应,在整个输入、负载和输出电压范围内都具有几乎恒定的工作频率。在轻载条件下,RT5752A 自动以 PSM 模式工作以维持高转换效率,RT5752B 则工作于强制 PWM 模式以满足应用对精确输出电压调节的需求。</br>RT5752对上下桥开关流过的电流都进行检测以实施严格的过流保护,每个周期都进行的过流保护可防止器件输出端短路、过流或电感饱和可能对器件造成的严重伤害,内建的软启动功能可避免在启动期间造成电流冲击,还具有输入欠压锁定保护、输出欠压保护/过压保护(RT5752AL/BL)和过热保护等完善的保护功能,确保其可在各种工作条件下的安全和平稳的运行。
RT5752 电路图
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<div class="spec-list"><ul class="lv1"><li>输入电压范围:2.5V~6V </li><li>集成 100mΩ/70mΩ 功率开关 </li><li>以 100% 占空比实现超低压差工作 </li><li>内部集成 1% 精度参考电压源 </li><li>典型工作频率:1.2MHz </li><li>轻载节能模式(RT5752A) </li><li>ACOT<sup>®</sup> 控制架构 </li><li>内部集成 1.5ms 软启动 </li><li>使能控制输入 </li><li>Power Good 指示 </li><li>负电流过流保护(RT5752B) </li><li>欠压锁定保护、过压/欠压保护、逐周期电流限制和过热保护 </li><li>符合 RoHS 规范,不含卤素 </li></ul></div>
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i18n(tabs.ordering-information.title)
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RT5752 订购信息
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RT5752
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RT5752
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<div class="spec-list"><ul class="lv1"><li>行动电话和掌上型设备 </li><li>机上盒、缆线数据机和 xDSL 设备 </li><li>WLAN ASIC 电源和存储装置电源 </li><li>通用负载点低压 Buck 转换器 </li></ul></div>
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