The AZ1117CH-1.8TRG1 is a low dropout three-terminal regulator. Suitable for PCB motherboard. The Az1117C has been optimized for low voltage where transient response and minimum input voltage are critical. It provides current limit and thermal shutdown. Its circuit includes a trimmed bandgap reference to assure output voltage accuracy to bewithin±1%. On-chip thermal shutdown provides protection against a combination of high current and ambient temperature that would create excessive junction temperature.