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RTQ2081 是一款專為車用雷達應用設計的電源管理 IC。其內建三組降壓轉換器、一組高電源抑制比低壓降穩壓器及一組通用型低壓降穩壓器。高電壓降壓轉換器支援最高 24V 輸入電壓範圍，並可承受最高 36V 的 Load Dump 事件，因此可直接連接至 12V 車用電池。RTQ2081 為各通道整合過壓與欠壓監測電路、錯誤輸出指示功能及透過 I²C 介面的故障狀態回報功能，以提升系統功能安全性。此外，裝置內建看門狗計時器（WDT），並支援可設定的上限與下限視窗容差，以增強系統監控能力及應用彈性。透過 I²C 或出廠預設設定，還可實現多項可程式化功能，包括各通道輸出電壓調整、自訂電源啟動時序、過壓（OV）及欠壓（UV）監測門檻設定，以及看門狗逾時時間配置。RTQ2081 採用具可焊側邊的 WET-WQFN 4mm × 4mm 24-pin 封裝。建議接面溫度範圍為 -40°C 至 150°C，環境溫度範圍為 -40°C 至 125°C。
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