Expert,
The customer actually measured the ADJ voltage value of 31 boards and found that nearly half of the ADJ voltage values of this LP2980IM5X-ADJ/NOPB are close to or lower than the Vref lower limit.
Please refer to the attachment for data.
TI_LDO LP2980IM5X-ADJ量测数据.xlsx
Is it because the materials are defective, or is there something wrong with our experiment or design?
I checked that LP2980IM5X-ADJ/NOPB is an old chip. The ADJ voltage is as shown in the picture below. Which condition should I refer to?
Assuming Tj=25C, is the ADJ voltage out of range?
Thank you.
Darren