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烧芯片

Other Parts Discussed in Thread: LM5176

利用LM5176进行升降压电路,在升压过程中,一切参数正常,只是电感发热,但是一旦切换成降压模式,立马烧LM5176的芯片,VCC电压只有3.2V左右,输入电压11-25V,输出电压20V,参数都利用webench 进行了优化