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RT8299A为高效率具有内部集成功率级MOSFET的DC/DC单片式同步降压型转压器,在输入电压范围从3V至24V,输出电流至3A的操作范围内均有着良好的输入电压、负载变动调节率。RT8299A的电流模式操作提供快速的瞬时响应与简易的回路稳定架构。逐周期形式的限流机制可在输出短路时提供电路保护作用,缓启动机制则可消除启动瞬间的输入电流涌浪的问题。热关断的保护机制提供了可靠的、容错率高的操作情形。低电流消耗的关断模式则可断开与输出的连接,实现简易的电池供电系统中的电源管理。
3V 至 24V输入电压范围
3A 输出电流
集成的 N-MOSFET 开关
电流模式控制
恒定操作频率 : 500kHz
可调输出电压范围 0.8V 至 15V
效率高达 95%
可采用低ESR的陶瓷电容做为输出电容
逐周期的过电流保护
输入低电压锁定机制
输出低电压保护
过热关机保护
SOP-8 (裸露焊垫) 与 10-接脚WDFN 包装
符合RoHS规范与无卤特性
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