For Reference Only
| Part Number | L5991A |
| Manufacturer | STMicroelectronics |
| Category | Integrated Circuits (ICs) › DC DC Switching Controllers |
| Description | IC REG CTRLR FLYBACK 16DIP |
| Lifecycle | Active |
| RoHS | No RoHS Information |
| EDA/CAD Models | L5991A PCB Footprint and Symbol |
| Warehouses | USA, Europe, China, Hong Kong SAR |
| Estimated Delivery | Dec 14 - Dec 18 2025(Choose Expedited Shipping) |
| Warranty | Up to 1 year [Limited-Warranty]* |
| Payment | 
|
| Shipping |  |
| Part Number: | L5991A |
| Brand: | STMicroelectronics |
| Lifecycle: | Active |
| RoHS: | Lead free / RoHS Compliant |
| Category: | Integrated Circuits (ICs) |
| Subcategory: | DC DC Switching Controllers |
| Manufacturer: | STMicroelectronics |
| Product Status: | Obsolete |
| Output Type: | Transistor Driver |
| Function: | Step-Up/Step-Down |
| Output Configuration: | Positive, Isolation Capable |
| Topology: | Flyback |
| Number of Outputs: | 1 |
| Output Phases: | 1 |
| Voltage - Supply (Vcc/Vdd): | 7.6V ~ 20V |
| Frequency - Switching: | Up to 1MHz |
| Duty Cycle (Max): | 93% |
| Synchronous Rectifier: | Yes |
| Clock Sync: | No |
| Serial Interfaces: | - |
| Control Features: | Current Limit, Frequency Control, Soft Start |
| Operating Temperature: | -40°C ~ 150°C (TJ) |
| Mounting Type: | Through Hole |
| Package / Case: | 16-DIP (0.300", 7.62mm) |
| Supplier Device Package: | 16-DIP |
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| In Stock | 58647 pieces - More on Order |
|---|---|
| Quote Limit | No Limit |
| Lead-Time | To be Confirmed |
| Minimum | 1 |
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| Qty. | Unit Price | Ext. Price |
|---|---|---|
| 1000 | $1.08750 | $1087.5 |
Due to the impact of the COVID-19,the above prices have not been updated, please resend the inquiry to us, thank you for your understanding
Please feel free to contact us for details.
