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RT8105A為內建MOSFET閘極驅動的 同步降壓型 DC/DC PWM 控制器,具備5V/12V的供應電源,300kHz的固定切換頻率並採用電壓模式控制。據內部補償的回授控制回路可大幅減少轉換器的設計複雜度。RT8105A提供 致能/關閉 功能以支援電源順序控制的設計,並提供多項的錯誤防護功能以保護負載。此產品並採用無損耗的低端MOSFET RDS(ON)電流感測技術與可調整的閾值以達到過電流保護機制。其它特色包含內部緩開機以及VIN偵測功能。
5V 至 12V 供應電壓
內建非交迭式N-MOSFET 驅動器
300kHz 固定切換頻率
內建控制回路補償
致能/關閉 控制
廣範圍0 至 100% 責任週期
低端MOSFET RDS(ON)電流感測
具抗雜訊的可調電流感測
全時序電壓過高保護
快速暫態回應
內建緩開機
符合RoHS規範與無鹵特性
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