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RT7296A为高效率,电流模式操作的同步降压型DC-DC转换器,输入电压范围4.5V至17V,输出电流可达3A。内部整合的高端80mΩ与低端30mΩ导通阻的MOSFET可达到高转换效率。电流模式操作提供快速的瞬时响应与内部的补偿架构,RT7296A提供TTH引脚,用于调整从PSM到PWM的转换点,以平衡效率和输出纹波。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。RT7296A提供完整的保护功能,包括输入低电压闩锁、输出低电压保护、过电流保护与过热关机保护。另可藉由EN/SYNC脚位讯号调整PWM操作频率。RT7296A支持TSOT-23-8 (FC) 包装。
4.5V至17V输入电压范围
输出电流3A
内部整合N通道MOSFET
电流模式控制
固定切换频率 : 500kHz
外部频率讯号同步 : 200kHz至2MHz
逐周期的电流限制保护
TTH用于调节PSM到PWM转换阈值
内建的缓开机功能
输入电压过低闩锁保护
输出低电压保护
过热关机保护
符合RoHS规范,不含卤素
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