L4973D5.1
IC REG BUCK ADJ/5.1V 3.5A 20SOManufacturer: STMicroelectronics
Categories: DC DC Switching Regulators
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The STMicroelectronics L4973D5-1 is a high-efficiency buck switching regulator designed for step-down voltage conversion. This IC provides a positive output voltage, with adjustable capabilities or a fixed 5.1V option, capable of supplying up to 3.5A. Featuring a wide input voltage range from 8V to 55V, it is suitable for demanding power supply applications. The L4973D5-1 operates with a switching frequency between 100kHz and 300kHz, and its non-synchronous buck topology ensures robust performance. Packaged in a 20-SOIC (0.295", 7.50mm Width) surface-mount case, this device is well-suited for industrial automation, automotive, and power management systems requiring reliable voltage regulation. The operating temperature range is -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) | 5.1V (5.1V) |
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