L79L00 is a fixed voltage regulator that provides -5, -6, -8, -9, -12, -15 V output voltage. It has built-in current limiting and thermal shutdown, which makes it essentially indestructible. It can deliver up to 100 mA output current if sufficient heat sink is provided. It is intended for use in a wide range of applications, including local or on-card regulation for eliminating noise and distribution problems associated with single-point regulation. In addition, it can be used with power pass elements to make high-current voltage regulators. The L79L00 series used as Zener diode/resistor combination replacement, offers an effective output impedance improvement of typically two orders of magnitude, along with lower quiescent current and lower noise.
The L79L00 series are three‑terminal negative voltage regulators that integrate current limiting and thermal shutdown, delivering up to 100 mA output current without external components. They are intended for fixed‑voltage regulation in applications such as on‑card regulation and can be combined with power pass elements for higher‑current solutions.
The document lists absolute maximum ratings, thermal data, order codes for various package types, and detailed electrical characteristics including output voltage ranges, dropout voltage, quiescent current, and thermal resistance. Revision history and legal disclaimer are also included.
| Output voltage options | -5 V, -6 V, -8 V, -9 V, -12 V, -15 V |
|---|---|
| Maximum output current | 100 mA |
| Dropout voltage | 1.7 V |
| Quiescent current (typical) | 6 mA |
| Storage temperature range | -40 °C to 150 °C |
The series can deliver up to 100 mA of output current.
Fixed output voltages of -5 V, -6 V, -8 V, -9 V, -12 V, and -15 V are offered.
The devices provide thermal overload protection and short‑circuit protection.