我按照芯片资料说明书里的18V电路搭建简易测试电路，当输入为3.3V时，输出8V；输入5V时，输出11V；
按道理说不是应该输入一个电压范围，输出都是18V吗，而且现在电路输出达不到18V
请问这是哪里出了问题？？？求指导呀
电感我是随便买的，10uh，1A的；
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