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RT8209L/M 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。RT8209L/M 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。RT8209L 的封装为 WQFN-16L 3x3,RT8209M 的封装为 WDFN-14L 3.5x3.5。
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