L5993D
IC REG CTRLR FLYBACK 16SOICManufacturer: STMicroelectronics
Categories: DC DC Switching Controllers
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The STMicroelectronics L5993D is a highly efficient, versatile Flyback controller IC designed for isolated and non-isolated DC-DC conversion. This device supports step-up and step-down voltage configurations, making it suitable for a broad range of power supply applications. It features a maximum duty cycle of 93% and operates at switching frequencies up to 1MHz, enabling compact and efficient power solutions. Integrated control features include current limiting, enable functionality, and soft-start for robust operation. The output stage is a positive, isolation-capable transistor driver. The L5993D is packaged in a 16-SOIC (0.154", 3.90mm Width) surface-mount package, suitable for demanding thermal environments with an operating temperature range of -40°C to 150°C (TJ). It also incorporates synchronous rectification for enhanced efficiency. This component is commonly utilized in industrial, automotive, and consumer electronics power management systems.
Additional Information
Series: -RoHS Status: RoHS non-compliantManufacturer Lead Time: No lead time information availableProduct Status: ObsoletePackaging: TubeDownload Free CAD Model:
Technical Details:
| Packaging | Tube |
| Package / Case | 16-SOIC (0.154"", 3.90mm Width) |
| Output Type | Transistor Driver |
| Mounting Type | Surface Mount |
| Function | Step-Up/Step-Down |
| Operating Temperature | -40°C ~ 150°C (TJ) |
| Output Configuration | Positive, Isolation Capable |
| Frequency - Switching | Up to 1MHz |
| Topology | Flyback |
| Voltage - Supply (Vcc/Vdd) | 10V ~ 20V |
| Supplier Device Package | 16-SO |
| Synchronous Rectifier | Yes |
| Control Features | Current Limit, Enable, Soft Start |
| Serial Interfaces | - |
| Output Phases | 1 |
| Duty Cycle (Max) | 93% |
| Clock Sync | No |
| Number of Outputs | 1 |
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