For Reference Only
| Part Number | ST1S40IPUR |
| Manufacturer | STMicroelectronics |
| Category | Integrated Circuits (ICs) › Voltage Regulators - DC DC Switching Regulators |
| Description | IC REG BUCK ADJ 3A 8VFQFPN |
| Lifecycle | Active |
| RoHS | No RoHS Information |
| EDA/CAD Models | ST1S40IPUR PCB Footprint and Symbol |
| Warehouses | USA, Europe, China, Hong Kong SAR |
| Estimated Delivery | Dec 07 - Dec 11 2025(Choose Expedited Shipping) |
| Warranty | Up to 1 year [Limited-Warranty]* |
| Payment |
|
| Shipping | ![]() |
| Part Number: | ST1S40IPUR |
| Brand: | STMicroelectronics |
| Lifecycle: | Active |
| RoHS: | Lead free / RoHS Compliant |
| Category: | Integrated Circuits (ICs) |
| Subcategory: | Voltage Regulators - DC DC Switching Regulators |
| Manufacturer: | STMicroelectronics |
| Product Status: | Active |
| Function: | Step-Down |
| Output Configuration: | Positive |
| Topology: | Buck |
| Output Type: | Adjustable |
| Number of Outputs: | 1 |
| Voltage - Input (Min): | 4V |
| Voltage - Input (Max): | 18V |
| Voltage - Output (Min/Fixed): | 0.8V |
| Voltage - Output (Max): | 18V |
| Current - Output: | 3A |
| Frequency - Switching: | 850kHz |
| Synchronous Rectifier: | Yes |
| Operating Temperature: | -40°C ~ 150°C (TJ) |
| Mounting Type: | Surface Mount |
| Package / Case: | 8-VDFN Exposed Pad |
| Supplier Device Package: | 8-VFQFPN (4x4) |
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| In Stock | 40031 pieces - More on Order |
|---|---|
| Quote Limit | No Limit |
| Lead-Time | To be Confirmed |
| Minimum | 1 |
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| Qty. | Unit Price | Ext. Price |
|---|---|---|
| 4500 | $0.97875 | $4404.375 |
| 9000 | $0.94250 | $8482.5 |
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.