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RT8209A/B/C PWM 控制器具有转换效率高、卓越的瞬态响应特性和高精度的电压输出，可将笔记本电脑的电池高电压转换为 CPU 内核、图形处理器、I/O 和芯片组需要的低压电源。由于采用固定导通时间控制技术，它可很容易地面对输入/输出比很宽的环境，对负载瞬变提供 100ns 的“即时”响应速度，同时维持基本恒定的工作频率。RT8209A/B/C 不使用传统的电流模式 PWM 控制架构中的电流检测电阻，降低了成本，提高了效率。其效率的进一步提升还来自于其具有的驱动大型同步整流 MOSFET 的能力，使其可将电池高电压直接转换为系统需要的电压，这也使得效率实现了最大化，可为 CPU 内核、芯片组、DRAM 或其它低压系统提供低达 0.75V 的电源供应。RT8209A 的封装为 WQFN-16L 3x3，RT8209B 的封装为 WDFN-14L 3.5x3.5，RT8209C 的封装为 TSSOP-14。
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<li class="mv5"> 极高的效率</li><li class="mv5"> 电阻可设定正电流限制阈值，电流经下桥 R<sub>DS(ON)</sub> 进行检测</li><li class="mv5"> 4700ppm/°C 电流检测</li><li class="mv5"> 100ns 负载阶跃快速响应能力</li><li class="mv5"> 全输入、负载范围内 1% V<sub>FB</sub> 精度</li><li class="mv5"> 4.5V~26V 输入电压范围</li><li class="mv5"> 电阻可设定工作频率</li><li class="mv5"> 集成自举开关</li><li class="mv5"> 集成负电流限制器</li><li class="mv5"> 电压瞬态过冲消除</li><li class="mv5"> 过压保护/欠压保护</li><li class="mv5"> 内置软启动和输出软放电功能</li><li class="mv5"> Power Good 指示</li><li class="mv5"> 符合 RoHS 规范，不含卤素</li>
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<li class="mv5"> 笔记本电脑</li><li class="mv5"> 系统电源</li><li class="mv5"> I/O 电源</li>
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