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关于LM3409HV片子的疑问

Other Parts Discussed in Thread: LM3409HV

LM3409HV片子介绍的是输入电压为6-42V。给出的例子都是LED大电流的。

手头有个小LED,工作电流低于20mA,

发现大才小用了,LM3409HV周围电路参数不好设计。

有没有介绍材料,用LM3409HV片子来实现15V输入,7V输出的方案,LED电流大约20mA.

就是顺手搭个小电路,来实现一下。俺也知道用这个片子大材小用。