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RT2875A/B 是高效的电流模式同步降压 DC/DC 转换器,可在 4.5V~36V 的输入电压范围内输出 3A 电流。它集成了 95mΩ/70mΩ 功率开关,可获得很高的转换效率。电流模式的控制架构容许其具有快速的瞬态响应能力,仅需使用简单的外部补偿。逐周期电流限制功能赋予其对抗输出短路的能力,外部可调的软启动消除了启动期间的输入电流冲击。它还具有完善的保护功能,如输入欠压锁定、输出欠压保护、过流保护和热关机保护等。RT2875A/B 使用的是热强化的 TSSOP-14(含外露的散热焊盘)封装。
3A 电流输出能力
内建 MOSFET 开关
可调开关切换工作频率:300kHz~2.1MHz
可调电流限制:1.5A~6A
可与 300kHz~2.1MHz 的外部时钟同步
可调输出电压范围:0.6V~24V
效率高达95%
可配合低 ESR 陶瓷输出电容稳定工作
逐周期电流限制
输入欠压锁定保护
输出欠压保护
热关机保护
符合 RoHS 规范,不含卤素
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