The TS78L09CX RFG is a linear, fixed voltage regulator IC manufactured by Taiwan Semiconductor. It is a small-outline, surface-mountable package, specifically measuring 2.9mm × 2.5mm in size. It provides 9V of output voltage, with a current output of up to 0.1A. This voltage regulator IC is rated for a wide operating temperature range, from 0°C to 150°C. Additionally, it has good line/load regulation and low dropout voltage. It is an ideal choice for a variety of applications, including precision voltage control, post-regulator, and reset generators.