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升压电路的问题

Other Parts Discussed in Thread: LMR62014

如上图的升压电路,需要输入5V输出15V。 但在实际连接中,一上电34063就被烧坏,很烫手,在通电钱也检查过了没有发现短路的地方,现在不太清楚为什么会这样子?