Key facts
- Model
- LM320
- Category
- Other Electronics
- Documents
- 4
- Languages
- EN
- Last added
- 2012-06-01
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National Semiconductor LM320L/LM79LXXAC Series Datasheet
The LM320L/LM79LXXAC series are dual‑marked 3‑terminal negative voltage regulators offering fixed output voltages of -5 V, -12 V and -15 V with output currents exceeding 100 mA. They incorporate self‑protection circuitry such as safe‑operating‑area limiting, temperature‑independent short‑circuit current limit and thermal shutdown.
The series is available in TO‑92, 8‑lead SOIC and 6‑bump micro‑SMD packages, and the datasheet provides electrical characteristics, typical performance curves, ordering information and mechanical dimensions for designers.
National Semiconductor LM320 specifications
| 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 |
| Operating temperature range | 0 °C to +70 °C |
| Maximum junction temperature | +125 °C |
| Package options | TO‑92, 8‑lead SOIC, 6‑bump micro SMD |
Source: National Semiconductor LM320L/LM79LXXAC Series Datasheet
All National Semiconductor LM320 documents by type
Ratings, dimensions and ordering codes, for selection and design work.
- National Semiconductor LM320L/LM79LXXAC Series Datasheet 8 p
- National Semiconductor LM3200 Miniature Adjustable Step-Down DC-DC Converter Datasheet 15 p
- National Semiconductor LM120/LM320 Series 3-Terminal Negative Regulators Manual 20 p
- National Semiconductor LM320L/LM79LXXAC Series 3-Terminal Negative Regulators Datasheet 8 p
Questions answered in these manuals
What fixed output voltages are available for the LM320L/LM79LXXAC series?
The series provides fixed output voltages of -5 V, -12 V and -15 V.
From: National Semiconductor LM320L/LM79LXXAC Series Datasheet
What is the maximum line regulation for these regulators?
The maximum line regulation is less than 0.07 % VQ/V.
From: National Semiconductor LM320L/LM79LXXAC Series Datasheet
What is the input voltage range of the LM3200?
The LM3200 operates from 2.7 V to 5.5 V.
From: National Semiconductor LM3200 Miniature Adjustable Step-Down DC-DC Converter Datasheet
What output voltage range can the LM3200 provide?
It can be set to any voltage between 0.8 V and 3.6 V.
From: National Semiconductor LM3200 Miniature Adjustable Step-Down DC-DC Converter Datasheet
What fixed output voltages are available for the LM120 series?
The LM120 series provides fixed output voltages of –5 V, –12 V, and –15 V.
From: National Semiconductor LM120/LM320 Series 3-Terminal Negative Regulators Manual
How many external components are required to use the LM120/LM320 regulators?
Only one external compensation capacitor at the output is required.
From: National Semiconductor LM120/LM320 Series 3-Terminal Negative Regulators Manual