Get rid of it at once.
Standard amp draw for a circuit breaker is 20A or more (check your breakers for the exact number, it is printed on). Your power supply should not be drawing anywhere near this much.
That much current probably means it failed to a short circuit. 120V * 20A[lower limit of current draw] = 2400 watts. That's a minimum of 2.4x what a typical microwave puts out. Your charger will get hot enough to start a fire.
EDIT:
Mark in his answer makes the point that it might be a combination of devices operating normally which together exceed the load on the circuit. While this is a valid point, most chargers will draw < 2A. That means that the circuit must, in its normal operation, draw very close to the maximum current draw permissible. More than likely, if this were the case, the OP would have a history of breaker trips on this circuit with startup power surges. Also, the OP tested on multiple sockets, which may (OP clarification wanted) mean that the OP tested on multiple circuits.
Easy test: plug in another appliance with similar current draw in one of the same plugs. If it doesn't trip, then it's not the cumulative current draw.
Conclusion:
Yes, there are possibilities other than a failure to short, if you fancy experimenting to see if the charger OK. However, laptop chargers cost $30 (approx). Electrical fires and hospital bills cost a lot more.
5Can you clarify whether what trips in the main box is a standard breaker or a GFCI breaker (one designed to trip due to a grounding fault, which may have a built-in test button)? And you've verified that it is actually a main box breaker that's tripping, rather than a GFCI outlet that may be on the same circuit as your wall outlets? This just seems like an unusual failure mode for a laptop charger unless there is something like a short in the power cord, in which case, you should be aware of burning (smell, heat, charring, arcing). – fixer1234 – 2016-07-15T08:49:33.043
1Yes, please clarify what exactly is tripping. The answers would probably be similar if not identical, but the implications are different. – a CVn – 2016-07-15T09:00:46.227
1Is the laptop connected by wire to anything other than the charger? Is there an Ethernet cable or a video cable? If so, can you replicate the problem with the laptop disconnected from these other things? The problem may not be the charger. Also what type of circuit breaker is this? Is it an old-style overcurrent only? GFCI? AFCI? – David Schwartz – 2016-07-15T10:52:28.287
5Also, were the circuits in question in use by other devices already? E.g.: If, on a 15A circuit, 14A continuous was already present, adding 2A would be more than sufficient to trip the breaker. Give us a little more context on the situation. – kronenpj – 2016-07-15T12:21:23.503
You state that you checked charger on other sockets but can you confirm that those other sockets are on a different circuit (trip a different breaker) or did the other sockets trip the same breaker? – nvuono – 2016-07-15T19:57:40.373
I believe it's impossible to answer this question with the information given. As kronenpj said, what else it plugged into this circuit? If it's cold where OP is, and there's a heater plugged into the same outlet, and there are a couple of lamps and the TV, it's entirely possible that the laptop simply overloaded the circuit and the breaker did its job as designed. It's also possible that any of the doomsday scenarios presented in the existing answer are correct as well.
– FreeMan – 2016-07-15T20:30:02.980To add to FreeMan's comment, Or even that the problem is with an overly sensitive or defective GFCI breaker and if the charger has a problem, it could be benign. So the possibilities range from there being nothing wrong with the charger or anything else, to the charger being fine but the breaker defective, to the charger having a harmless defect, to the charger burning your house down. – fixer1234 – 2016-07-16T00:55:50.300