L4973D3.3
IC REG BUCK ADJ/0.5V 3.5A 20SOManufacturer: STMicroelectronics
Categories: DC DC Switching Regulators
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STMicroelectronics L4973D3-3 is a 3.5A adjustable buck switching regulator designed for efficient voltage conversion. This device operates with an input voltage range of 8V to 55V and provides a selectable output voltage, adjustable down to 0.5V or a fixed 3.3V, with a maximum output of 50V. Featuring a switching frequency between 100kHz and 300kHz, it is housed in a 20-SOIC package (0.295", 7.50mm Width) suitable for surface mounting. The L4973D3-3 is a non-synchronous buck converter, ideal for applications in industrial automation, automotive systems, and consumer electronics requiring robust power management. It offers a single positive output configuration and operates across an extended temperature range of -40°C to 150°C (TJ).
Additional Information
Series: -RoHS Status: ROHS3 CompliantManufacturer Lead Time: No lead time information availableProduct Status: ObsoletePackaging: TubeDatasheet:Download Free CAD Model:
Technical Details:
| Packaging | Tube |
| Package / Case | 20-SOIC (0.295"", 7.50mm Width) |
| Output Type | Adjustable (Fixed) |
| Mounting Type | Surface Mount |
| Number of Outputs | 1 |
| Function | Step-Down |
| Current - Output | 3.5A |
| Operating Temperature | -40°C ~ 150°C (TJ) |
| Output Configuration | Positive |
| Frequency - Switching | 100kHz ~ 300kHz |
| Voltage - Input (Max) | 55V |
| Topology | Buck |
| Supplier Device Package | 20-SO |
| Synchronous Rectifier | No |
| Voltage - Output (Max) | 50V |
| Voltage - Input (Min) | 8V |
| Voltage - Output (Min/Fixed) | 0.5V (3.3V) |
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