A linearly regulated power supply is provided for providing a regulated load voltage to a load. In a preferred embodiment, the linearly regulated power supply includes: a voltage reference circuit for providing a first voltage reference; a resistive voltage divider connected to the voltage reference circuit for receiving the first voltage reference and then providing a second voltage reference; an error amplifier for receiving the second voltage reference and providing a controlling voltage; and a regulating circuit controlled by the controlling voltage, the regulating circuit receiving a source voltage and then providing a load voltage to a load, the regulating circuit including two transistors connected to each other in parallel for regulating the load voltage. The linearly regulated power supply is capable of providing a greater current to the load and the components of the linearly regulated power supply can be used efficiently.
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