ADP3339 minimum input power and tolerance

Question

According to the datasheet ADP3339 has a 2.8 V to 6 V input voltage range. We currently use this device in our design which feed in only 2.48V at the input due to design limitation. I understand that this is not ideal but so far we have minimal fall-out. Without specifying in a new part, could someone please explain the impact of providing insufficient input power and the risk/failure symptoms? 
 Thanks. 
 Peter

FormerMember · Accepted Answer

Peter, 
 The only thing we guarantee are the mins and maxes in the spec table. Looking at a few parts 
 on the bench at room temperature, from one date code and one wafer run, is very risky. 
 Even if it looks good, and you have had good luck in the past, the next batch of boards that 
 you build could have 50% failures with a different date code. Additionally, we might do a fab 
 transfer or a mask set revision to increase yield and meet all of the numbers in the spec table 
 and maybe none of the parts would work in your system. If this is a production design, 
 and you chose the wrong part, the only suggestion I have would be to do a board spin and 
 use the ADM7171 or ADM7154, both of which are less money than the ADP3339 
 Harry

EZAdministrator · Answer

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ADP3339 minimum input power and tolerance