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U0339

•產品描述:U0339是一個高頻,同步,整流,降壓,開關模式轉換器與內部功率mosfet。它提供了一個非常緊湊的解決方案,在寬輸入供電范圍內提供3A最大輸出電流,具有出色的負載和線路調節。ECOT PSM控制操作提供非??焖俚乃矐B響應和簡單的環路設計以及非常嚴格的輸出調節。U0339需要最少數量的現成外部組件,并且可以在節省空間的ESOP8封裝中使用。

•主要特點:4.5V至28v工作輸入范圍;3A最大輸出電流;500KHz開關頻率;ECOT PSM模式控制與快速瞬態響應;內置過電流限制;內置過壓保護;PFM模式在輕載高效率;內部軟啟動;100m0/50m0低RDS(ON)內部功率mosfet;輸出可調從0.923V;不需要肖特基二極管;短保護與hicup模式;集成內部補償;熱關機;可在ESOP8封裝;-40'C到+85℃溫度范圍;

•典型應用:數字機頂盒(STB);高清藍光™光盤播放器;安全監控;數字電視電源;網絡家庭終端設備;一般用途

•典型應用電路  


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