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RT7296A為高效率,電流模式操作的同步降壓型DC-DC轉換器,輸入電壓範圍4.5V至17V,輸出電流可達3A。內部整合的高端80mΩ與低端30mΩ導通阻的MOSFET可達到高轉換效率。電流模式操作提供快速的暫態響應與內部的補償架構,RT7296A提供TTH引腳,用於調整從PSM到PWM的轉換點,以平衡效率和輸出紋波。逐週期形式的限流機制可在輸出短路時提供電路保護作用。RT7296A提供完整的保護功能,包括輸入低電壓閂鎖、輸出低電壓保護、過電流保護與過熱關機保護。另可藉由EN/SYNC腳位訊號調整PWM操作頻率。RT7296A支援TSOT-23-8 (FC) 包裝。
4.5V至17V輸入電壓範圍
輸出電流3A
內部整合N通道MOSFET
電流模式控制
固定切換頻率 : 500kHz
外部時脈訊號同步 : 200kHz至2MHz
逐週期的電流限制保護
TTH用於調節PSM到PWM轉換閾值
內建的緩開機功能
輸入電壓過低閂鎖保護
輸出低電壓保護
過熱關機保護
符合RoHS規範,不含鹵素
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