The SN7912PI is a linear voltage regulator from Kodenshi, a Japanese company, in a TO-220F-3L RoHS package. It is a three-terminal positive voltage regulator with a wide range of input voltage and an output voltage adjustable from 1.2V up to 30V. It has a rated output current of 100mA, with a maximum load current of 300mA, and it is suitable for use in battery-powered applications. It helps to provide stable, accurate and reliable power supply from a wide range of sources. Its features include low-noise operation, high PSRR (Power Supply Rejection Ratio), low output temperature rise, and wide operating temperature range. It is RoHS compliant, which means that it meets the standards put in place to reduce the environmental impact of hazardous substances.