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LMZ14203H输出12V不能稳定到3A的问题

Other Parts Discussed in Thread: LMZ14203H, LMZ14203

手上有一块你们的42V 3A LMZ14203H Module,然后去买了一个大功率滑动电阻器回来测试,发现输出12V时不能稳定到3A,大概在2910mA停下来,电压11点几V,然后效率百分之五十多点,我在不同的时间测试了两次,结果一样,不知道是我测错了,还是这个模块本来就是这样呢,麻烦指导一下。