Adam Armstrong scored a double for the home side after they'd gone in front through on-loan Facundo Ferreyra with Callum Roberts grabbing their other goal.
Newcastle led 4-0 just three minutes into the second half with Burnley scoring a consolation goal, the scorer is not, as yet, available.
The teams were;
Newcastle: Jak Alnwick, Ryan Taylor (Jamie Sterry), Remie Steele, Lubo Satka, Massadio Haidara, Gael Bigirimani, Mehdi Abeid, Callum Roberts, Adam Armstrong, Haris Vuckic, Facundo Ferreyra. Subs not used: Paul Woolston, Kevin Mbabu, Dan Barlaser, Alex Gilliead, Tom Heardman.
Burnley: Danijel Nizic, Luke Daly, Callum Richardson, Alex Whitmore, Luke Conlan, Jamie Frost, Steven Hewitt, Nathan Lowe, Cameron Howieson, Ntumba Massanka, Jason Gilchrist. Subs: Tony Aghayere, Aiden O'Neill, Christian Hill, Trialist.
Update: Burnley's goalscorer has now been confirmed as Ntumba Massanka.