按照5117手册上28页的图焊接的图~ 接5欧的负载，输出电流只有零点零几安，电压只有零点几伏。lm5117工作不正常~测得的HO脚的输出波形，峰值达到40v。
下图是放大之后看的波形细节：
还有RT脚，LO脚，CS脚 都是这种类似的断断续续的波形~
电路图：
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