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RT7298B是一個高效率,單片同步降壓型DC / DC轉換器,在4.5V至18V的輸入電源下可提供高達6A的輸出電流。RT7298B的電流模式架構和外部補償使得在很寬範圍的負載及輸出電容中,都可得到最佳的瞬態響應。逐週期電流限制保護元件不受輸出短路影響,軟啟動功能可在啟動過程中防止了輸入電流過衝。故障保護包括輸出欠壓保護、輸出過電壓保護和過溫保護。低電流消耗之電源關閉模式會將輸出關閉,有助於電池供電系統的電源管理。
低 RDS(ON) MOSFET 開關:26mΩ/19mΩ
輸入電壓範圍:4.5V至18V
可調切換頻率:200kHz至1.6MHz
電流模式控制
外部時鐘同步:200kHz至1.6MHz
精確的參考電壓:0.6V ± 1%
單調啟動進入預偏置輸出
可調軟啟動
電源良好指示
可選的Hiccup Mode和Latch-Off Mode欠電壓保護
過溫和過電壓保護
輸入欠電壓鎖定
符合RoHS規範與無鹵特性
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