Key facts
- Brand
- STMicroelectronics
- Model
- LM338
- Industry
- Industrial
- Documents
- 2
- Languages
- EN
- Last added
- 2012-08-10
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STMicroelectronics LM138/LM238/LM338 Adjustable Voltage Regulator Datasheet
The LM138, LM238, and LM338 are three-terminal adjustable positive voltage regulators capable of supplying in excess of 5 A over an output range of 1.2 V to 32 V. These devices are supplied in a standard 3-lead TO-3 transistor package and require only two resistors to set the output voltage. A unique feature is time-dependent current limiting, which allows peak currents of up to 12 A for short periods to handle heavy transient loads.
Read onlineSTMicroelectronics LM338 specifications
| Output current | 5 A |
|---|---|
| Peak output current | 7 A |
| Output voltage range | 1.2 V to 32 V |
| Line regulation | 0.005 %/V |
| Load regulation | 0.1 % |
| Package type | TO-3 |
Source: STMicroelectronics LM138/LM238/LM338 Adjustable Voltage Regulator Datasheet
All STMicroelectronics LM338 documents by type
Ratings, dimensions and ordering codes, for selection and design work.
Questions answered in these manuals
What is the temperature range for the LM138?
The LM138 is rated for operation from -55 °C to 150 °C.
From: STMicroelectronics LM138/LM238/LM338 Adjustable Voltage Regulator Datasheet
What is the maximum input-output voltage differential?
The maximum input-output voltage differential is 35 V.
From: STMicroelectronics LM138/LM238/LM338 Adjustable Voltage Regulator Datasheet
What input bypass capacitor is recommended?
A 0.1 µF disc or 1 µF solid tantalum capacitor is recommended on the input.
From: STMicroelectronics LM138/LM238/LM338 Adjustable Voltage Regulator Handbook
What is the reference voltage of the LM338?
The LM338 develops a nominal 1.25 V reference voltage between the output and adjustment terminal.
From: STMicroelectronics LM138/LM238/LM338 Adjustable Voltage Regulator Handbook