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L4973D3.3
| Category |
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Business
| Product Category | Voltage Regulators - Switching Regulators | Standard Package | Rail / Tube |
| Factory Pack Quantity | 40 | Standard Package Name | SOIC |
Compliance
| RoHS | Lead free / RoHS Compliant | EU RoHS | Compliant |
| Rad Hardened | No | ||
Electrical
| Efficiency | 85(Typ) % | Output Type | Adjustable |
| Regulator Type | Buck Controller | Voltage Rating | 0.5 to 50 V |
| Line Regulation | 10 mV | Load Regulation | 25 mV |
| Current - Output | 3.5 A | Current - Supply | 16 mA |
| Voltage - Supply | 8 to 55 V | Number of Outputs | 1 |
| Regulator Topology | Step Down | Switching Regulator | Yes |
| Current Rating (Max) | 3.5A | Frequency - Switching | 300 kHz |
| Synchronous Rectifier | No | Voltage - Input (Min) | 3.3V, 0.5 V ~ 50 V |
| Power - Average Forward | 4 W | DC Voltage - Input (Min) | 8 V |
| Voltage Regulation - Load | 10 mV | ||
Mechanical
| Width | 7.6mm | Height | 2.35mm |
| Length | 13mm | Weight | 1.05 g |
| Packaging | Tube | Lead Style | Gull-wing |
| Mounting Type | Surface Mount | Mounting Style | SMD/SMT |
| Number of Pins | 20 | Package / Case | 20SO |
| Package Cooled | SO | Package Quantity | SO |
| Size / Dimension | 13 x 7.6 x 2.35mm | Number of Positions | 20 |
| Supplier Device Package | 20-SO | ||
Product Info
| Spg | 40 | Type | Step Down |
| Series | L4973 | Function | Y |
| Shutdown | Shutdown | Topology | Buck |
| Manufacturer | STMicroelectronics | Number of Units | 1 |
| Function - Lighting | 降压控制器 | ||
Environmental
| Operating Temperature | -40 to 150 °C | ||
Documents & Media
PDF Document
PDF Document
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Sourcing & traceability
- Datasheet
- CD00000188.pdf
Lot-level traceability (date code, original factory packaging) is confirmed on every quote and shipment.