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Product Spec Banner
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RT9703 是具有低达 80mΩ R<sub>DS(ON)</sub> 和全面的保护功能的低压、高性能功率开关，设计用于实现电源轨的开关控制。它使用内置的电荷泵电路对内置的 MOSFET 开关进行驱动，具有一个用于指示故障状态的信号输出以应对诸如过大的电流变化等问题所导致的输出跌落问题。为了满足不同应用的需要，它有一个可以进行电流限制阈值设定的 IP 引脚可供使用，从该端子 连接一个电阻到地即可设定该参数。此外，它还具有软启动功能可限制插入期间的冲击电流，有热关机保护功能以预防大电流负载可能给开关带来的灾难性失效，有欠压锁定功能确保出现在输入端的电压不足时总是处于关机状态，还有可用电阻进行精确设定的、高达 3.5A 的输出电流限制。它那低达 30μA 的静态电流使之成为电池供电的便携式产品的理想选择。RT9703 的封装是 SOP-8。
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<div class="spec-list"><ul class="lv1"><li>可调的电流限制可高达 3.5A </li><li>内置典型值为 80mΩ 的 N-MOSFET </li><li>具有反向电流阻止功能（没有本体二极管），在关闭状态下容许输出端电压高于输入端电压 </li><li>低电流消耗: <ul class="lv2"> <li></li><li>导通状态下的电流消耗为 30μA </li><li>关闭状态下的电流消耗低于 1μA </li></ul> </li><li>确保 3A 持续电流输出能力 </li><li>宽输入电压范围： 2V~5.5V </li><li>开漏故障信号输出 </li><li>适合热插入应用 </li><li>1.7V 典型值欠压锁定(UVLO) </li><li>热关机保护 </li><li>SOP-8 封装 </li><li>符合 RoHS 标准及 100% 不含铅 </li></ul></div>
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<div class="spec-list"><ul class="lv1"><li>液晶电视、监视器 </li><li>用于 ADSL 的 USB 供电模块 </li><li>信息设备，机顶盒 </li><li>电池供电设备 </li><li>热插入电源 </li><li>ACPI 电源分配装置 </li><li>PCI 总线电源开关 </li><li>计算机主板和笔记本电脑 </li></ul></div>
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