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RT6283B是可在4.5V~30V输入电压范围内提供3A输出能力的电流模式同步降压DC/DC转换器,集成有150mΩ上桥开关和80mΩ下桥开关,转换效率最高可达95%,具有瞬态响应速度快、补偿电路简单等特性。它采用逐周期电流限制保护方式应对输出短路现象,内建软启动消除启动期间的电流冲击,同时具有完备的保护特性如输入欠压锁定保护、输出欠压保护、过流保护和过热关机保护等功能。RT6283B采用含有裸露式散热焊盘的SOP-8封装,具有良好的热特性。
输入电压范围:4.5V~30V
负载能力:3A
内建N-MOSFET功率开关
电流模式控制架构
固定工作频率 :500kHz
输出电压可调范围:0.8V~24V
最高效率95%
使用低ESR陶瓷输出电容可稳定工作
逐周期电流限制保护
输入欠压锁定保护
输出欠压保护
热关机保护
电流限制阈值可调
轻载条件下以节能模式实现高效率
符合RoHS规范,不含卤素
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