To be honest, the current Litening IV pod is completely integrated into the AV-8B NA/PLUS systems and it has made the ARBS/DMT redundant in the NA thanks to its FLIR and laser designation capability. But before that, yeah. It was pretty much that.
In fact the Litening II pod, the one modeled here, was considered as a special kind of Maverick by the AV-8B NA/PLUS systems.
Unfortunately, since the Litening IV pod is currently in use, its documentation is still restricted. BTW, one of the new features it has is that it can remotely managed by the FAC in the ground, who then uses it to designate targets for the pilot to engage.