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RT2805A是一款电流模式异步降压转换器,可在宽输入电压范围5.5V至36V实现优异的负载调整率和电源调整率,且可支持最高5A的输出电流。电流模式操作能提供快速瞬态响应,也较易达到回路稳定。可调整的软启动降低启动时输入源上的应力。在电源关闭模式下,调节器仅消耗25μA的供应电流。RT2805A只需要最少的、方便可取得的、外部元件,可提供一个体积小的解决方案。RT2805A提供了保护功能,包括输入欠压锁定 (UVLO),逐周期电流限制 (cycle-by-cycle current limit),短路保护 (short circuit protection) 和过热保护 (thermal shutdown protection)。RT2805A采用SOP-8(裸露焊盘)封装。
5A 输出电流
宽操作输入范围 5.5V 至 36V
可调整输出电压1.222V 至 26 V
高达90%的高效率
内部补偿以减少外部元件数
内部软启动
110mΩ 内部功率MOSFET开关
25μA 电源关闭模式
恒定频率500kHz
过热保护
逐周期电流限制
采用SOP-8 ( 散热焊盘 ) 封装
符合RoHS标准及不含卤素
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