Circuits for regulating a voltage or current to a load(s). In one example,
a circuit may include a first amplifier providing an amplifier output
signal, the first amplifier having at least a first input and a second
input, the first input receiving a voltage reference signal; a first
transistor receiving the amplifier output signal, the first transistor
having a transistor output; at least one resistor coupled between the
transistor output and the second input of the first amplifier and
defining a feedback voltage signal node; a second transistor in parallel
with the first transistor, the second transistor receiving the amplifier
output signal, the second transistor providing a regulated output signal
of the circuit; a second amplifier receiving the output signal of the
second transistor and the transistor output of the first transistor, the
second amplifier providing a control signal; and a circuit element
coupled between the feedback voltage signal node and ground, the circuit
element receiving as a control the control signal of the second
amplifier.