NEW YORK--(BUSINESS WIRE)--Fitch Ratings affirms all the outstanding student loan notes issued by SLM Private Credit Student Loan Trust 2006-A at their current ratings. The Rating Outlook remains Stable for all the notes. A detailed list of rating actions follows at the end of this press release. KEY RATING DRIVERS Adequate Collateral Quality: The trust is collateralized by approximately $1.25 billion of private student loans for 2006-A trust. The loans were originated by Navient Corp. (fka SLM