Miles Sanders had a career day for the Eagles with 143 rushing yards and two touchdowns on Sunday Night Football.
Robinson will undergo surgery and miss the remainder of 2022 season.
Penn State finishes the year 17-4 with a share of the Big Ten regular season title.
Back-to-back shutouts to kick off the NCAA Tournament have set the Nittany Lions up with a semifinal date with No. 1-seeded North Carolina.
Penn State will play in its first semifinal game since 2007.
The Nittany Lions advance to the quarterfinals of the tournament for the first time since 2017.