Recover Date of type Date - php + mysql

Hello, I'm looking for a date information from a database with a lot of information, I'm doing this:

 $data = $tbdeliberacoes->getData();
 date("d/m/Y", strtotime($data));

And this is my return on screen:

 31/12/1969

For all fields it shows this date. But the dates recorded at the bank are normal.

The field I want to fetch is of type Date.