# L5991A STMicroelectronics | Integrated Circuits (ICs) | DigiKey

**Manufacturer:** STMicroelectronics  
**MPN:** `L5991A`

## Specifications

| Attribute | Value |
| --- | --- |
| Brand name | STMicroelectronics |
| Manufacturer name | STMicroelectronics |
| Manufacturer | STMicroelectronics |
| Extra Product Name | L5991A STMicroelectronics \| Integrated Circuits (ICs) \| DigiKey |
| atoms | 1 |
| moq | 1 |
| MPN | L5991A |
| multiple | 1 |
| qtyInStock | 0 |
| SKU | 497-5722-ND |
| Category | Integrated Circuits (ICs) |
| Mfr | STMicroelectronics |
| Series | - |
| Package | Tube |
| Part Status | Obsolete |
| Output Type | Transistor Driver |
| Function | Step-Up/Step-Down |
| Output Configuration | Positive, Isolation Capable |
| Topology | Flyback |
| 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 |
| Number of Outputs | 1 |

## Distributor availability

| Distributor | SKU | Price (USD) | Qty | Stock | MOQ |
| --- | --- | --- | --- | --- | --- |
| Digi-Key | 497-5722-ND |  |  | None | 1 |
| Hotenda | H2744887 |  |  | None | 1 |
| 4 Star Electronics | L5991A |  |  | None | 1 |
| Digi-Key | 1299884 |  |  | None | 1 |

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Structured data: `/python/html6/product/500/53000000/53199500/part_--L5991A---STMicroelectronics--4088eb3aba.json`  
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