The LM320L/LM79LXXAC dual marked series of 3-terminal negative voltage regulators features fixed output voltages of −5V, −12V, and −15V with output current capabilities in excess of 100mA. These devices were designed using the latest computer techniques for optimizing the packaged IC thermal/electrical performance. The LM79LXXAC series, even when combined with a minimum output compensation capacitor of 0.1µF, exhibits an excellent transient response, a maximum line regulation of 0.07% VO/V, and a maximum load regulation of 0.01% VO/mA. The LM320L/LM79LXXAC series also includes various self-protection circuitries. Although designed primarily as fixed voltage regulators, these devices may be combined with simple external circuitry for boosted and/or adjustable voltages and currents. The LM79LXXAC series is available in multiple package options. The LM320L series is available in the 3-lead TO-92 package. The LM137L series provides an output voltage range from 1.2V to 47V.
The LM320L/LM79LXXAC series are 3‑terminal negative voltage regulators offering fixed output voltages of -5 V, -12 V, and -15 V with output currents exceeding 100 mA. They feature internal protection circuitry, low line and load regulation, and can be used with external components for adjustable or boosted outputs.
The document provides electrical characteristics, ordering information, package dimensions (TO‑92, 8‑lead SOIC, 6‑bump micro‑SMD), typical performance graphs, and safety notices for life‑support and banned‑substance compliance.
| Fixed output voltages | -5 V, -12 V, -15 V |
|---|---|
| Output current capability | >100 mA |
| Maximum line regulation | < 0.07 % VQ/V |
| Maximum load regulation | < 0.01 % Vo/mA |
| Maximum junction temperature | 125 °C |
The series provides fixed output voltages of -5 V, -12 V, and -15 V.
Maximum line regulation is less than 0.07 % VQ/V.