L79L05ACD13TR

The STMicroelectronics L79L05ACD13TR is a linear voltage regulator designed to provide a stable negative voltage output. This component features a fixed output voltage of -5V, capable of delivering up to 100mA of output current. It is designed with internal current limiting and thermal shutdown, making it highly reliable and protected against overloads and short circuits.

The regulator is suitable for a wide range of applications requiring local on-card voltage regulation, helping to eliminate noise and distribution problems. It can also be used with power pass elements for higher current requirements. The L79L series offers improved output impedance compared to traditional Zener diode/resistor combinations.

This specific part, the L79L05ACD13TR, comes in an 8-pin SOP (Small Outline Package) suitable for surface mounting. It operates within a temperature range of -40°C to 125°C and requires an input voltage between 7V and 20V. The output voltage accuracy is within ±5% of the nominal -5V.

Key electrical characteristics include a typical dropout voltage of 1.7V, a typical quiescent current of 6mA, and a power supply rejection ratio (PSRR) of 49dB. The compact dimensions of the SOP package (1.65mm height, 4.9mm length, 3.9mm width) make it suitable for space-constrained designs.