I use the LT3080 to regulate from 28.5V input to 28V output. This dropout voltage of 0.5V is insufficient to supply the Vcontrol pin, which requires a minimum of 1.2V.
Can you recommend a small DCDC converter able to generate a voltage of about 30 to 35V, from an input of 3 to 5V, with a current of 50mA maximum ? This would be used to supply the Vcontrol of LT3080.
My search for a charge pump has yielded only parts that do 5V output.
[edited by: JValeriani at 8:35 PM (GMT 0) on 10 Oct 2019]