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LM25118 ,9--16输入， 12V3.5A. 效率问题

xiaoqiang he
Prodigy 10 points
Other Parts Discussed in Thread: LM25118, LM5175

LM25118  ,9--16输入，  12V3.5A. 效率问题   。。9.5V输入时效率还有*86%    效率太低，，发热比较严重，，，求教各位给点意见      电压高点还好，，，13V输入92%