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| Part Number | LT8640SEV#PBF | LT8642SEV#PBF | LT8645SEV#PBF | LT8640SIV#PBF | LT8643SEV#PBF | LT8650SEV#PBF | LT8646SEV#PBF | LT8648SEV#PBF |
|---|---|---|---|---|---|---|---|---|
| Manufacturer | Analog Devices Inc. | Analog Devices Inc. | Analog Devices Inc. | Analog Devices Inc. | Analog Devices Inc. | Analog Devices Inc. | Analog Devices Inc. | Analog Devices Inc. |
| Product Status | Active | Active | Active | Active | Active | Active | Active | Active |
| Function | Step-Down | Step-Down | Step-Down | Step-Down | Step-Down | Step-Down | Step-Down | Step-Down |
| Output Configuration | Positive | Positive | Positive | Positive | Positive | Positive | Positive | Positive |
| Topology | Buck | Buck | Buck | Buck | Buck | Buck | Buck | Buck |
| Output Type | Adjustable | Adjustable | Adjustable | Adjustable | Adjustable | Adjustable | Adjustable | Adjustable |
| Number of Outputs | 1 | 1 | 1 | 1 | 1 | 2 | 1 | 1 |
| Voltage - Input (Min) | 3.4V | 2.8V | 3.4V | 3.4V | 3.4V | 3V | 3.4V | 3V |
| Voltage - Input (Max) | 42V | 18V | 65V | 42V | 42V | 42V | 65V | 42V |
| Voltage - Output (Min/Fixed) | 0.97V | 0.597V | 1.8V | 0.97V | 0.97V | - | 1.8V | 0.6V |
| Voltage - Output (Max) | 42V | 3.3V | 12V | 42V | 42V | 42V | 12V | 42V |
| Current - Output | 6A | 10A | 8A | 6A | 6A | 4A | 8A | 15A |
| Frequency - Switching | 200kHz ~ 3MHz | 200kHz ~ 3MHz | 200kHz ~ 2.2MHz | 200kHz ~ 3MHz | 200kHz ~ 3MHz | 300kHz ~ 3MHz | 200kHz ~ 2.2MHz | 200kHz ~ 2.2MHz |
| Synchronous Rectifier | Yes | Yes | Yes | Yes | Yes | No | Yes | Yes |
| Operating Temperature | -40°C ~ 125°C (TJ) | -40°C ~ 125°C (TJ) | -40°C ~ 125°C (TJ) | -40°C ~ 125°C (TJ) | -40°C ~ 125°C (TJ) | -40°C ~ 125°C (TJ) | -40°C ~ 125°C (TJ) | -40°C ~ 125°C (TJ) |
| Mounting Type | Surface Mount | Surface Mount | Surface Mount | Surface Mount | Surface Mount | Surface Mount | Surface Mount | Surface Mount |
| Package / Case | 24-TFQFN Exposed Pad | 24-TFQFN Exposed Pad | 32-TFQFN Exposed Pad | 24-TFQFN Exposed Pad | 24-TFQFN Exposed Pad | 32-TFQFN Exposed Pad, 28 Leads | 32-TFQFN Exposed Pad | 36-TFQFN Exposed Pad |
| Supplier Device Package | 24-LQFN (4x4) | 24-LQFN (4x4) | 32-LQFN (6x4) | 24-LQFN (4x4) | 24-LQFN (4x4) | 32-LQFN (6x4) | 32-LQFN (6x4) | 36-LQFN (7x4) |
