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TPS61175芯片发烫

Other Parts Discussed in Thread: TPS61175EVM-326

参照TPS61175EVM-326做了一个12V转24V,发现芯片很烫,不敢长时间运行

二极管采用的是UF5402,电感采用的是SS1260220MLB,22uH,开关频率电阻取为200Kohm,开关频率约500KHZ