The RHFL7913A from STMicroelectronics is a Radiation-Hard Adjustable Negative Voltage Regulator. It requires an input voltage from -12 V to -1.3 V. This regulator provides an output voltage of less than -1.16 V and has a dropout voltage of over -450 mV. It includes embedded over-temperature and over-current protection features, ensuring robust and reliable operation under abnormal conditions. This regulator offers an adjustable current limiting function to cater to different application requirements and includes output over-load monitoring and signaling to promptly alert users of potential issues. It also has an inhibit (ON/OFF) TTL-compatible control feature to accurately control the voltage level. This regulator is equipped with programmable output short-circuit current and remote sensing operation for enhanced precision. It is available in a surface-mount package that measures 9.17 x 19.41 mm.