We are utilizing this component as a 12V supply with inputs varying from about 13V to 30V. We noticed that as everything turns on at 13V, we only receive an output voltage of approximately 11.6V. When the input voltage reaches 14.9V, the output voltage dips down to 11.2V. As the input voltage increases to 30V, the output gradually increases to about 11.4V. We originally had a 20k resistor for R301 to set the supply to 12V, but replaced it with a 18.7k (which was in place for all the measurements taken). This did a minor impact to the output and still did not reach 12V, given that our calculation should have put us closer to 12.9V. The schematic is shown below.
Additionally, the input capacitance is not 1uF, but has a total of 133 uF for the input due to 4 parallel 33uF capacitors on VIN_2 located on a different page. The input looks clean for VIN_2 as well. Output current never exceeds 45mA, and temperature only hits about 33C on the housing. The only area of concern I can find is with the feedback pin.
Apologies if the image below is blurry. Blue is the output, and red is the feedback line. Input voltage was at 14.9V, which is where the switch from 11.6V to 11.2V occurred. We are unsure if this waveform in the picture is expected or if this could be causing our low voltage issues, but the feedback pin only seems to reach about 1.15V to 1.169V depending on the input voltage (lower input voltages closer to 1.169V, and higher input voltages closer to 1.15V) at room temperature, and that excludes the dipping that occurs.
Any assistance would be greatly appreciated. I can provide additional information on request.