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REF5050 参考电压芯片输出固定为4.8V,而不是5V

Other Parts Discussed in Thread: REF5050, REF5040

REF5050 参考电压芯片输出固定为4.8V,而不是5V。(不论后级是否接负载一样)

电路很简单,如下:

是我们使用不当还是购买的一批芯片有问题?

芯片Mark (TI71 R50F)