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RT8110B為適用於單一電源應用的單相同步降壓轉換器的定頻PWM控制器,並內建MOSFET驅動設計,其特色為內建穩壓調節器允許廣輸入電壓範圍應用。RT8110B 採用電壓模式控制並具備內部補償以簡化轉換器之設計。內部0.8V的參考電壓允許低輸出電壓的應用,切換頻率固定於400kHz以降低外部被動元件的大小並節省電路板面積。RT8110B 提供低電壓保護、電流限制、過電流保護與過溫保護。低端MOSFET RDS(ON)被用於過電流保護所需的電感電流感測應用。
10V 至 28V 寬輸入電壓範圍
0.8V 內部參考電壓
內建緩啟動
高直流增益電壓模式的PWM控制架構
固定400kHz 切換頻率
快速暫態回應
高達80% 的責任週期範圍
過電流保護
低電壓保護
過熱關機保護
小型的TSOT-23-8封裝
符合RoHS規範與無鹵特性
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