This means that regulation of the auxiliary output voltage is solely dependent on the regulation of the main output voltage. For example, if the main output is experiencing a light load while the auxiliary output voltage experiences a heavy load, the auxiliary output voltage may diminish. This is because there is no feedback regulation in Figure 3a or Figure 3b that can let the MAX5035 control loop know that the duty cycle must increase to provide a constant voltage at the auxiliary output. This is why the auxiliary output seems to be regulated but in reality, it is not. The feedback control loop only provides regulation to the main output voltage.