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TPS53355: TPS53355 12V转0.9V 26A,输出存在2-3K左右正弦震荡

Part Number: TPS53355

12V转0.9V 26A,电感0.33uh,输出电容是470uF*1+100uF*2+22uF*1;

纹波注入电路10K+22nf+1nf并联到VFB,分压电阻top 1.075K, bottom 2K;