Charlton won a poor game with the one piece of real quality shown all afternoon. 
The win – Robinson’s first since joining the club – lifted the Addicks back into the top half of the table.
The manager made one change from the team that lost at Millwall, Frederik Ulvestad returning in place of Adam Chicksen, who dropped to the bench.
MK Dons looked the more likely side early on, but Phillips was not called upon to make any exceptional saves.
The game turned on two incidents in a three minute spell towards the end of the first half.
First, Dean Bowditch had to be replaced after 35 minutes, and the Dons never looked as threatening after his departure.
Then, came the decisive move of the match . Morgan Fox won the ball in midfield and shifted it to Andrew Crofts.
Crofts played an exquisite ball forward that dissected the Dons’ defence. The ball was perfectly weighted for Ademola Lookman to run onto.
The precocious teenager took a touch, before firing a thunderbolt across David Martin and into the far corner.
Charlton snuffed out any danger the Dons posed in a dull second period, with neither side testing the keeper.
Robinson, Johnnie Jackson, and the coaching staff are off to see Roland Duchatelet on Tuesday.
If he can conjure up wins against Southend United and Bristol Rovers, and get his plans for January approved, Robinson will look forward to the rest of the season with confidence.
Charlton: Phillips; Konsa, Bauer, Teixeira, Fox; Lookman, Crofts, Ulvestad, Jackson (Aribo 56); (Chicksen 87), Ajose (Johnson 90+2), Magennis.
Subs (not used): Mitov, Foley, Botaka, Ahearne-Grant.
Goal: Lookman 38.
Booked: Lookman 86 (time wasting)
Milton Keynes Dons: Martin; GB Williams, Downing, Walsh, Lewington; Upson; Agard (Aneke 86), Carruthers (Powell 80), Bowditch (GC Williams 35), Reeves; Maynard.
Subs (not used): Nicholls, Hendry, Furlong, Tshimanga.
Booked: Carruthers 63 (foul), Walsh 90 (foul), Upson 90 (dissent).
Referee: Chris Sarginson (Staffordsire).
Attn: 10,257 (928 Charlton).
TAGS: Charlton Athletic