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RT8237E 是高性能的 PWM 控制器，可将笔记本电脑电池高电压转换为低电压为 CPU 内核、I/O 接口、芯片组和存储器供电，具备效率高、瞬态响应特性好、输出电压精度高等特性。</br>它采用固定导通时间的 PWM 控制架构，可在很宽的输入、输出电压比范围内工作，对负载瞬变具有 100ns 的“即时”响应速度，同时维持几乎恒定的工作频率。使用中无需像传统电流模式 PWM 控制器那样需要使用电流检测电阻，降低了成本，提高了效率。具备强大的同步整流 MOSFET 驱动能力，轻载条件下即进入二极管仿真模式工作，效率得到最大化改善，可以高效率将电池高电压直接转换为低电压。它采用预先设定的工作频率，简化了设计工作压力。</br>RT8237E 的主要用途是为 CPU 内核、芯片组、DRAM 或其他电压低达 0.7V 的负载供电，其封装形式为 WDFN-10L 3x3。
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<li class="mv5">输入电压范围：2.7V~26V</li><li class="mv5">输出电压范围：0.7V~3.3V</li><li class="mv5">内建 0.7V±0.5% 参考电压源</li><li class="mv5">100ns 负载阶跃快速效应</li><li class="mv5">4700ppm/°C 电流源用于电流限制</li><li class="mv5">使用下桥 MOSFET 实施可调的电流限制</li><li class="mv5">4 个可选工作频率</li><li class="mv5">可驱动大型同步整流 MOSFET</li><li class="mv5">集成自举开关</li><li class="mv5">内建过压保护、过流保护和欠压保护</li><li class="mv5">过热关机保护</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">CPU 内核电源</li><li class="mv5">低达 0.7V 的芯片组、存储器电源</li><li class="mv5">通用 DC/DC 电源</li>
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