隨著在系統單晶片(System on Chip, SoC)手持式裝置及電動產品的發展下，電源轉換器希望透過先進製程達到更小的佔比面積或是更小的電壓漣波並提供多個輸出電壓，以滿足不同單位的需求。本論文採用漣波固定關斷時間控制法，有著較好的暫態響應速度，同時使用電流回授法來降低電壓漣波量，且提出具改善交互調節的方法，使用外部補償電流，當任一輸出負載改變時，啟動補償電流的機制，使轉換器有較好的交互調節率，此單電感雙輸出降壓型轉換器能供給不同輸出電壓與負載，並維持良好的交互調節率，以取代需要使用多組轉換器來實現多輸出電壓的相同效果。
本論文採用TSMC 0.18 μm 1P6M CMOS製程實現，晶片的面積包含內部 PADs 為 2.205 × 2.26 mm^2。本文輸入電壓為 3.3 V，輸出電壓分別為1.8V以及1.5 V，切換頻率為1MHz，PCB 上面外掛電感、儲能電感以及輸出電容分別為56μH、10μH與10μF，輸出負載範圍為 300 mA至1A。

With the development of system on chip (SoC) handheld devices and electric products, power converters hope to achieve a smaller area or smaller voltage ripple and provide multiple outputs through advanced manufacturing processes voltage to meet the needs of different units. This paper adopts the ripple base constant off-time control method, which has a better transient response speed. The current feedback method is used to reduce voltage ripple, and a method with improved cross regulation is proposed. When the output load changes, the compensation current mechanism is activated, so that the converter has a better cross regulation rate. This single-inductor dual-output buck converter can supply different output voltages and loads, and maintain a good cross regulation rate. In-stead of needing to use multiple sets of converters to achieve the same effect of multiple output voltages.

This paper is implemented by TSMC 0.18 μm 1P6M CMOS process, and the area of the wafer including the internal PADs is 2.205 × 2.26 mm^2. In this paper, the input voltage is 3.3 V, the output voltage is 1.8V and 1.5 V respectively, the switching frequency is 1MHz, the external inductor, energy storage inductor and output capacitor on the PCB are 56μH, 10μH and 10μF respectively, and the output load range is 300 mA to 1A.

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