L7981A
IC REG BUCK ADJ 3A 8HSOPManufacturer: STMicroelectronics
Categories: DC DC Switching Regulators
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STMicroelectronics L7981A is a high-efficiency, monolithic synchronous step-down switching regulator. This adjustable output voltage device offers a wide input voltage range from 4.5V to 28V, with a maximum output current capability of 3A. The L7981A features a switching frequency adjustable from 250kHz to 1MHz, enabling optimization for performance or component size. Its internal compensation simplifies design and reduces external component count. The device is housed in an 8-HSOP (exposed pad) package, suitable for surface mounting, and operates across an extended temperature range of -40°C to 150°C. Key applications include industrial power supplies, automotive systems, and consumer electronics requiring efficient voltage conversion.
Additional Information
Series: -RoHS Status: ROHS3 CompliantManufacturer Lead Time: 99 week(s)Product Status: Last Time BuyPackaging: TubeDatasheet:Download Free CAD Model:
Technical Details:
| Packaging | Tube |
| Package / Case | 8-SOIC (0.154"", 3.90mm Width) Exposed Pad |
| Output Type | Adjustable |
| Mounting Type | Surface Mount |
| Number of Outputs | 1 |
| Function | Step-Down |
| Current - Output | 3A |
| Operating Temperature | -40°C ~ 150°C (TJ) |
| Output Configuration | Positive |
| Frequency - Switching | 250kHz ~ 1MHz |
| Voltage - Input (Max) | 28V |
| Topology | Buck |
| Supplier Device Package | 8-HSOP |
| Synchronous Rectifier | No |
| Voltage - Output (Max) | 28V |
| Voltage - Input (Min) | 4.5V |
| Voltage - Output (Min/Fixed) | 0.6V |
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