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RT6541D 是高性能的同步 Buck PWM 控制器,用于将电池高电压转换为 0.77V 低电压,具备效率高、瞬态响应特性好、输出电压精度高等特性。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,提供 100ns 量级的负载瞬变响应速度,同时保持基本恒定的工作频率。它在应用中无需使用传统电流模式控制架构使用的电流检测电阻,降低了成本,提高了效率。它具备驱动大型同步整流 MOSFET 开关的能力,可在轻载时工作于二极管仿真模式以提高效率。其封装形式为WDFN-14L 3x2。
内建 1% 精度参考电压源
利用下桥开关 RDS(ON) 检测电流并实施可调节的电流限制,4700ppm/°C 温度补偿
输入电压范围:3V~26V
可驱动大型同步整流 MOSFET 开关
集成自举开关
过压/欠压保护
过热关机保护
Power Good 指示
符合 RoHS 规范,不含卤素
14 引脚 WDFN 封装
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