Jan 15 (Reuters) - Federal Reserve Bank of Boston President Eric Rosengren said on Friday he welcomes President-elect Joe Biden's proposed $1.9 trillion stimulus package as "big" but "appropriate," and signaled the Fed has no inclination to dial back from its own super-easy monetary policy.

"The mix that we have actually on fiscal and monetary policy is appropriate," Rosengren told CNBC in an interview, adding he expects stronger growth in the second half if vaccines are rolled out broadly. "It is appropriate for us to continue to be buying both MBS and Treasury securities."

(Reporting by Ann Saphir Editing by Chris Reese)