A81805KESJSR
lmages are for reference only.A81805KESJSR
IC REG BUCK 3.3V 2.5A 20QFN
Datasheet20-VFQFN Exposed Pad
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Buck Switching Regulator IC Positive Fixed 3.3V 1 Output 2.5A 20-VFQFN Exposed Pad
A81805KESJSR
| Category | Integrated Circuits (ICs) - Power Management PMIC - Voltage Regulators DC DC Switching Regulators |
| Manufacturer | Allegro MicroSystems |
| Series | - |
| Packaging | Tape & Reel (TR)-->Cut Tape (CT) |
| RoHS Status | ROHS3 Compliant |
| Function | Step-Down |
| Output Configuration | Positive |
| Topology | Buck |
| Output Type | Fixed |
| Number of Outputs | 1 |
| Voltage - Input (Min) | 3.5V |
| Voltage - Input (Max) | 36V |
| Voltage - Output (Min/Fixed) | 3.3V |
| Voltage - Output (Max) | - |
| Current - Output | 2.5A |
| Frequency - Switching | 400kHz ~ 2.5MHz |
| Synchronous Rectifier | Yes |
| Operating Temperature | -40°C ~ 150°C (TJ) |
| Mounting Type | Surface Mount, Wettable Flank |
| Package / Case | 20-VFQFN Exposed Pad |
| Supplier Device Package | 20-QFN (4x4) |
| Base Product Number | A81805 |
| Grade | - |
| Qualification | - |
| Product Attribute |  |
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| Part Number | A81805KESJSR-1 | A8303SESTR-T | A8303SESTR-T | A8447SLJTR-T |
| Manufacturer | Allegro MicroSystems | Allegro MicroSystems | Allegro MicroSystems | Allegro MicroSystems |
| RoHS Status | ROHS3 Compliant | ROHS3 Compliant | ROHS3 Compliant | |
| Description | IC REG BUCK 5V 2.5A 20QFN | IC REG STEP-UP 20QFN | IC REG LNBR 1CH 20QFN | IC REG BUCK ADJ 3A 8SOIC |
| Series | Allegro MicroSystems | Allegro MicroSystems | Allegro MicroSystems | Allegro MicroSystems |
| Packaging | Tape & Reel (TR)-->Cut Tape (CT) | Bulk | Tape & Reel (TR) | Tape & Reel (TR)-->Cut Tape (CT) |
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| Delivery Time | In-stock items can be shipped within 24 hours. Some parts will be arranged for delivery within 1-2 days from the date all items arrive at our warehouse. And Orwintech ships order once a day at about 17:00, except Sunday. Once the goods are shipped, the estimated delivery time depends on the shipping methods and Delivery destination. The table below shows are the logistic time for some common countries. |
| Delivery Cost | Use your express account for shipment if you have one. Use our account for the shipment. Refer to the table below for the approximate charges. (Different time frame / countries / package size has different price.) |
| Delivery Method | Global Common Shipment by DHL / UPS / FedEx / TNT / EMS / SF we support. Others more shipping ways, please get in touch with us. |
| Region | Country | Logistic Time(Day) |
| America | United States | 5 |
| Brazil | 7 | |
| Europe | Germany | 5 |
| United Kingdom | 4 | |
| Ltaly | 5 | |
| Oceania | Australia | 6 |
| New Zealand | 5 | |
| Asia | India | 4 |
| Japan | 4 | |
| Middle East | Israel | 6 |
| Shipment charges(KG) | Reference DHL(USD$) |
| 0.00kg-1.00kg | USD$30.00 - USD$60.00 |
| 1.00kg-2.00kg | USD$40.00 - USD$80.00 |
| 2.00kg-3.00kg | USD$50.00 - USD$100 |
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