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RT6550 是 Buck 控制器,用于为电池供电的系统生成稳定的电压。其中包含输出电压 2V~5.5V 可调的 PWM 控制器和可输出最大 100mA 电流的 5V 线性稳压器。其他特性包括具有集成化的上电时序控制功能、内部软起动功能和防止关机以后出现负压的输出软放电功能。<br>由于采用固定电流涟波的 PWM 控制技术,它在工作时无需使用电流检测电阻,对付再瞬变具有100ns的响应速度。RT6550封装为 WDFN-10L 3x3。
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<div class="spec-list"><ul class="lv1"><li>支持轻薄型笔记本电脑的连接关机模式 </li><li>CCRCOT 控制架构,具有 100ns 负载响应能力 </li><li>PWM 最大责任周期 > 98% </li><li>5V~25V 输入电压范围 </li><li>2V~5.5V 输出电压范围 </li><li>5V LDO 具有 100mA 输出能力 </li><li>3.3V LDO 输出精度达1% </li><li>内部频率设定:300kHz @ VIN = 12V </li><li>内部软启动和软放电 </li><li>4700ppm/°C R<sub>DS(ON)</sub> 电流检测 </li><li>独立控制器使能控制 </li><li>内建 OVP/UVP/OCP/OTP </li><li>非锁定的 UVLO </li></ul></div>
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<div class="spec-list"><ul class="lv1"><li>笔记本电脑 </li><li>系统电源 </li><li>3芯和4芯锂离子电池供电系统 </li></ul></div>
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