The L78M05CDT is a 3-terminal fixed output, positive voltage regulator manufactured by STMicroelectronics. It is designed to provide a constant regulated voltage of 5 volts with a maximum output current of 100 mA. The output voltage of the device is accurately set to 5 Volts with a maximum deviation of 2.5% over the full temperature range of -40°C to +125°C. The wide input voltage range of the device is between 8 and 40 volts and its output is capable of withstanding transient current spikes to 3 A peak. This component is available in an SOT-89 package with a typical dropout voltage of 2V.