Key facts
- Model
- LM320
- Category
- Other Electronics
- Documents
- 4
- Languages
- EN
- Last added
- 2012-06-01
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National LM320L/LM79LXXAC Series Manual
The LM320L/LM79LXXAC series is a 3-terminal negative voltage regulator with fixed output voltages and high output current capabilities. It has excellent transient response and stability, and comes with self-protection circuitry. Additionally, it can be combined with external circuitry to achieve boosted and/or adjustable voltages and currents.
Read onlineNational Semiconductor LM320 specifications
| Fixed output voltages | -5 V, -12 V, -15 V |
|---|---|
| Maximum load current | 1.5 A |
| Input‑output voltage differential | 30 V |
| Package TO‑3 power dissipation | 20 W, 1.5 A |
| Package TO‑39 power dissipation | 0.5 W, 0.5 A |
| Package TO‑220 power dissipation | 15 W, 1.5 A |
| Ripple rejection (120 Hz) | 54‑64 dB |
| Thermal resistance, junction‑to‑case | 3 °C/W |
| Thermal resistance, junction‑to‑ambient | 35 °C/W |
Source: National Semiconductor LM120/LM320 Series 3-Terminal Negative Regulators Manual
All National Semiconductor LM320 documents by type
Ratings, dimensions and ordering codes, for selection and design work.
Questions answered in these manuals
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
What fixed output voltages does the LM320L/LM79LXXAC series provide?
The series provides fixed output voltages of -5 V, -12 V, and -15 V.
From: National Semiconductor LM320L/LM79LXXAC Series 3-Terminal Negative Regulators Datasheet
What is the maximum line regulation for these regulators?
Maximum line regulation is less than 0.07 % VQ/V.
From: National Semiconductor LM320L/LM79LXXAC Series 3-Terminal Negative Regulators Datasheet