This post explains for the regulator.
The Part Number is GS1117AX.
The Package is SOT-223 Pin Type.
The function of this semiconductor is 1A, Dropout Voltage Regulator.
Manufacturer: Globaltech Semiconductor
The GS1117AX is a low dropout three-terminal regulator with 1A output current capability. In order to obtain lower dropout voltage and fast transient response, which is critical for low voltage applications.
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.
1. Adjustable or Fixed Output
2. Current Limit and Thermal Protection
3. Output Current of 1A
4. 1.3V Dropout Voltage
5. Line Regulation typically at 0.04% Max.
6. Load Regulation typically at 0.2% Max.
7. RoHS Compliant, 100%Pb & Halogen Free
1. Battery-Power Circuitry
2. Post Regulator for Switching Power Supply
3. Low Voltage Logic Suppliers