LD1117 series is a low dropout linear voltage regulator, providing 1.2 V, 1.8 V, 2.5 V, 2.85 V, 3.0 V, 3.3 V and 5.0 V multiple fixed output voltages, and also providing 1.25 V adjustable output voltage version. This device has high efficiency, high reliability and high stability, which is suitable for various electronic equipment.