Other Parts Discussed in Thread: TPS51200, TPS51206
Hello,
On the datasheet of TPS51200, I have trouble about two table (I'm using DDR3L and DDR4) :
By reading value, it seems that Refout could vary by +/-2% for Vrefin=0.6V.
Regarding datasheet of DDR4 component from Micron for example, they requested no more than 1% of VDD (1.2V) for Vref variations so +/-12mV.
If I add the resistor tolerance on Refin, I will be out of specification using TPS51200.
Same thing for Vo, +/-15mV for TPS51200 which is 2.5%, requested no more of 3% by Micron. Using 0.1% resistors could be fine but I'm afraid about the +/-25mV of output voltage tolerance to REFOUT.
So, what I'm missing to say that we can use TPS51200 for DDR4.
Thanks