LM336Z-5.0 / NOPB test process found that the output voltage only 4.6 v, less than 5V

Hello, I buy the LM336Z-5.0 / NOPB TI-92 package on the official TI website on May 31, the number is 4000, the order number is T00779504, conform to specifications standard test environment, the output voltage test result is 4.6 v, less than 5V, it is urgent that this problem be solved

Johnsin Tao：

Hi不建议你这样测试，首先洞洞板寄生参数大，其次回路可能很大，一般情况下测试很容易出问题。同时建议用示波器看电压。其次建议将电路放上来，从板子上看，你是乎增加限流电阻。