What was your previous title? If you were a manager, it sounds like coordinator might just either be a title change or a slight step down (but not always; it could be misunderstanding from management that coordinator could imply that). If you’re currently a specialist, associate or analyst, it seems like it’d be a step up.
In my current company, coordinator can either by synonymous with some type of manager (though without any direct reports, more like project manager) or it can be the next step above an admin. Usually it’s the latter, but sometimes it’s the former.
But in the company I worked at last job, a coordinator is the day-to-day manager of employee activities in a given group. They don’t have the power to hire or fire, but they’re responsible for organizing work and coaching employees who aren’t performing appropriately.