A low drop out voltage regulator (10) that receives an input voltage and
generates a substantially constant output voltage includes a gain stage (12),
a buffer stage (14), an output driver transistor (16), and first
and second load current sense circuits (18, 20). The first load current
sense circuit is connected between the output driver transistor and the buffer
stage and adaptively increases a bias current of the buffer stage as a function
of the load current. The second load current sense circuit is connected between
the output driver transistor and the gain stage and adaptively decreases a bias
current of the gain stage as the load current increases.