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.
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.
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.