The S1117 is a series of low dropout voltage regulators which can provide up to 1A of output current. On chip precision trimming adjusts the refernce/output voltage to within 2%. Current limit is also trimmed to ensure specified output current and controlled short-circuit current. The S1117 series is available in SOT-223 and DPAK power packages. A minimum of 10uF tantalum capacitor is required at the output to improve the transient response and stability.