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tps78223,输出电压不对的问题



我在使用tps78223的过程中,输出电压应该是2.3V,但是实际输出电压一直和输入电压一样,不知什么原因?

1pin接输入3V(CR2032电池供电)

2pin接地

3pin接输入3V

4pin接地

5pin为输出

整个电路为标准应用的经典用法。