We are using ADP7182 and trying to adjust Vout to -1.8V from -25V input but currently we only can get about -2.5V output with Resistor 60.4KOhm and 110KOhm. any suggestion on this?
using the Simpower tool I came up with 56.2K on top resistor and 118K on bottom
the tool can be found here http://download.analog.com/PMP/ADI_LinearRegulators.zip
also, I am assuming you are using the adjustable part.