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RT8268为允许高电压输入的降压型 DC/DC 转换器,可输入电压范围4.75V至24V,输出电流可至2A,其电流模式的操作提供快速的瞬时响应与简易的回路稳定架构。RT8268具有可设计的缓启动功能以因应用户的不同需求,此外并提供了逐周期形式的限流机制与热关断保护功能。操作于关机模式时,只有22μA的低电流消耗。RT8268采用SOP-8与MSOP-10 (裸露焊盘)的封装规格。
输入电压范围 : 4.75V 至 24V
可调输出电压范围 : 0.92V 至 16V
2A 输出电流
22μA 的低停机电流
功率级 MOSFET : 0.18Ω
效率高达 95%
400kHz恒定操作频率
可采用低ESR的陶瓷电容做为输出电容
可设计的缓启动机制
热关断保护
逐周期的电流限制机制
符合RoHS规范与无卤特性
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