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RT8208E/F 是采用固定导通时间控制技术的 PWM 控制器，提供4种电阻设定的直流输出电压，输出电压的可设定范围为 0.75V~3.3V，可通过控制其 G0/G1 输入实现输出电压的变换，为需要输出电压变换的系统提供总体方案成本最低解决方案。在电压变换期间，RT8208E/F 自动屏蔽 Power Good 输出以避免错误的保护动作。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，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。RT8208E/F 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。此外，它还具有软启动、过压保护、可编程过流保护和无重叠的门极驱动等特性。其封装为 WQFN-16L 3x3。
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<li class="mv5"> 极高的效率</li><li class="mv5"> 0.75V~3.3V 电阻可编程的输出电压，集成变换支持能力</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"> 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"> 负电流限制器</li><li class="mv5"> 电压瞬态过冲消除器</li><li class="mv5"> 过压保护</li><li class="mv5"> 欠压保护</li><li class="mv5"> 4级电流限制软启动过程</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><li class="mv5"> 输出可编程电源</li>
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