The APL1117 is a low dropout three-terminal adjustable regulators with 1A output current capability. In order to obtain lower dropout voltage and faster transient response, which is critical for low voltage applications, the APL1117 has been optimized. The device is available in an adjustable version and fixed output voltages of 1.2V, 1.8V, 2.5V, 2.85V, 3.3V, and 5V. The output available voltage range of an adjustable version is from 1.25 to 10.7V with an input supply below 12V. Dropout voltage is guaranteed at a maximum of 1.3V at 1A. Current limit is trimmed to ensure specified output current and controlled short-circuit current. On-chip thermal limiting provides protection against any combination of overload that would create excessive junction temperatures. The APL1117 is available in the industry standard 3-pin TO-220, TO-252- 3, TO-263-3, and the low profile surface mount SOT-223 power packages which can be used in applications where space is limited.