Key facts
- Brand
- STMicroelectronics
- Model
- L4971
- Industry
- Industrial
- Documents
- 2
- Languages
- EN
- Last added
- 2012-08-10
Start here
DatasheetST L4971 handbook
ST L4971 handbook
Datasheet
L4971 is a 1.5A step down switching regulator that delivers 1.5A at a voltage between 3.3V and 50V (selected by a simple external divider). Realized in BCD mixed technology, the device uses an internal power D-MOS transistor (with a typical Rdson of 0.25Ω) to obtain very high efficency and high switching speed.
Read onlineSTMicroelectronics L4971 specifications
| Input voltage range | 8 V to 55 V |
|---|---|
| Output voltage range | 3.3 V to 50 V |
| Maximum output current | 1.5 A |
| Switching frequency (adjustable) | up to 300 kHz |
| Package types | DIP‑8, SO‑16W |
| Thermal shutdown | Yes |
| Soft‑start function | Yes |
All STMicroelectronics L4971 documents by type
Datasheet 1
Ratings, dimensions and ordering codes, for selection and design work.
Questions answered in these manuals
What is the maximum input voltage for the L4971?
The L4971 can operate with an input voltage up to 55 V.
What output voltage range can the L4971 provide?
The output voltage is adjustable from 3.3 V to 50 V.