power supply - Can I use a microcontroller to control the output voltage of a switching powersupply?

I am attempting to control a switching power supply from my microcontroller. I am using a LT1377 from linear.

In the diagrams in the datasheet, a voltage divider is used to drive the feedback pin. Is it possible to replace that with a signal from my microcontroller?

EDIT: Thanks for the answers. I am waiting for parts to come in to be able to test the different solutions.