Yes. The UCD90xxx family employs a PWM method to do voltage margining. Compared to the DAC method, the PWM method provides better resolution and current driving capacity. When not used by a margining function, PWM pins can be use as GPIO pins (except UCD90240), which provides additional flexibility for you to allocate pin resources.
For more FAQ please check the following document.
UCD90xxx Family Frequently Asked Questions and Answers
UCD9090 UCD9090A UCD90120 UCD90120A UCD90124 UCD90124A UCD90160 UCD90160A UCD90240 UCD90320 UCD90320U