The PQ05RA1/PQ05RA11 series are low power loss voltage regulators from SHARP, with output voltages of 5V, 9V, and 12V, and an output current of 1A. The OFF-state leakage current is ≤1μA for switch power supplies, and the power dissipation is PD1 ≤ 1.5W without a heat sink and PD2 ≤ 15W with an infinite heat sink.