  A new model of the regular black hole in $(2+1)-$dimensions is introduced by
considering an appropriate matter field as the energy-momentum tensor. First,
we propose a novel model of $d$-dimensional energy density that in
$(2+1)-$dimensions leads to the existence of an upper bound on the radius of
the event horizon and a lower bound on the mass of the black hole which are
motivated by the features of astrophysical black holes. According to these
bounds, we introduce an admissible domain for the event horizon radius,
depending on the metric parameters. After investigation of geometric properties
of the obtained solutions, we study the thermal stability of the solution in
the canonical ensemble and find that the regular black hole is thermally stable
in the mentioned admissible domain. Besides, the Gibbs free energy is
calculated to examine the global stability of the solution.

General Relativity and Quantum Cosmology;High Energy Physics - Theory