I am having issues with slim289.tsc - the output voltage doesn't seem to be accurate. I biased the model according to the datasheet R1/R2 value, but I could never get the desired voltage output. I tried 1V, 1.2V and 1.8V -- in every case the sim outputs are always about 1.5% lower than what I expected. For example, intead of 1V, I got 0.985V output.
I thought the ESR of the Cout may be set too high in the testbench. But it make no differences and the output is still wrong even if I set the R-ESR to something small like 1m Ohm. Can someone from the analog group take a look? Thanks.
We will investigate the issue. Can you tell me what the load you are using is or is it the same load swing as in the reference design?
Hi, I use the exact same load as in the reference design.
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