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RT2856是一款高效率、单晶同步降压型DC/DC转换器,在4.5V~18V的输入电压范围可提供最高为6A的输出电流。RT2856 使用外部补偿的电流模式控制架构,在很宽的负载范围和输出电容配置下都可得到最佳的瞬态响应。它采用逐周期电流限制措施对抗输出短路带来的影响,其软启动功能可消除启动过程中输入电流冲击。其故障保护措施包括输出欠压保护、输出过压保护和过热保护。低电流消耗之电源关闭模式可完全关断输出,有助于简化电池供电系统的电源管理。
集成 26mΩ / 19mΩ MOSFET 功率开关
输入电压范围:4.5V~18V
工作频率可调范围:200kHz~1.6MHz
电流模式控制架构
外同步时钟信号频率范围:200kHz~1.6MHz
-40°C ~ 85°C 范围内的参考电压:0.8V±1%
输出预偏置下的启动过程是单调的
可调软启动
Power Good 指示
欠压/过压保护
输入欠压锁定保护
符合 RoHS 规范,不含卤素
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