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RT8297A/B系列為高效率的同步Buck轉換器,工作頻率為340kHz/800kHz,在4V至17V的輸入電源範圍可提供最高為1.5A的輸出電流。RT8297A/B採用電流模式架構,可優化瞬態回應的特性。逐週期電流限制保護元件免受輸出短路影響;軟啟動功能可在啟動過程中消除輸入端電流衝擊。故障保護包括輸出欠壓保護、輸出過壓保護、過熱保護。低電流消耗(<5μA)之電源關機模式會將輸出關閉,有助於電池供電系統的電源管理。RT8297A/B支持WDFN-8L 2x2的封裝規格。
輸入電壓範圍:4V~17V
負載能力:1.5A
內部集成N-MOSFET功率開關
電流模式控制架構
固定工作頻率:340kHz/800kHz
輸出電壓可調範圍:0.8V~12V
效率高達95%
內部補償
與低ESR陶瓷輸出電容配合可穩定工作
逐週期過流限制保護
輸入欠壓鎖定保護
輸出欠壓保護
輸出過壓保護
Power Good指示
過熱關機保護
符合RoHS規範,不含鹵素
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