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TPS65131: 电压输出不正常,开启电源芯片立即发烫

Part Number: TPS65131


原理图如图,焊接后确认无误,输出电压不太正常,上电大约2秒后芯片发烫,原预定输出电压±16.5v。麻烦网友们帮帮忙SobSob