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RT7271A 是高效、同步降压架构的 DC/DC 转换器,可用于输入电压介于 4.5V~17V 之间、输出电流最大达 6A 的应用中。RT7271A 的电流模式控制架构容许其瞬态响应被调节至最优的状态,逐周期电流限制对输出端短路状况提供了很好的保护,其软启动机制消除了启动期间的输入端电流冲击,故障保护功能包括了输出欠压保护、输出过压保护和热关机保护。在低电流消耗的关机模式下,输出端的连接是被断开的,这对电池供电的系统无疑是个好消息。
输入电压范围: 4.5V~17V
输出电流最大 6A
全温度范围内的参考电压: 0.6V ±1%
短路状况下锁定保护
输出端预加载情况下的启动过程是单调的
500kHz 恒定工作频率
低导通电阻
上桥 MOSFET 开关: 45mΩ
下桥 MOSFET 开关:25mΩ
逐周期电流限制
带有欠压保护和过压保护的电源状态监视
输入欠压锁定
热关机保护
符合 RoHS 规范,不含卤素
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