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| Part Number | LT8640IUDC#PBF | LT8641IUDC#PBF | LT8640IUDCF#PBF | LT8640EUDC#PBF | LT8640HUDC#PBF |
|---|---|---|---|---|---|
| Manufacturer | Analog Devices Inc. | Analog Devices Inc. | Analog Devices Inc. | Analog Devices Inc. | Analog Devices Inc. |
| Product Status | Active | Active | Active | Active | Active |
| Function | Step-Down | Step-Down | Step-Down | Step-Down | Step-Down |
| Output Configuration | Positive | Positive | Positive | Positive | Positive |
| Topology | Buck | Buck | Buck | Buck | Buck |
| Output Type | Adjustable | Adjustable | Adjustable | Adjustable | Adjustable |
| Number of Outputs | 1 | 1 | 1 | 1 | 1 |
| Voltage - Input (Min) | 3.4V | 3V | 3.4V | 3.4V | 3.4V |
| Voltage - Input (Max) | 42V | 65V | 42V | 42V | 42V |
| Voltage - Output (Min/Fixed) | 0.97V | 0.8V | 0.97V | 0.97V | 0.97V |
| Voltage - Output (Max) | 42V | 64.35V | 42V | 42V | 42V |
| Current - Output | 5A | 3.5A | 5A | 5A | 5A |
| Frequency - Switching | 210kHz ~ 2MHz | 210kHz ~ 2MHz | 210kHz ~ 2MHz | 210kHz ~ 2MHz | 210kHz ~ 2MHz |
| Synchronous Rectifier | Yes | Yes | Yes | 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 ~ 150°C (TJ) |
| Mounting Type | Surface Mount | Surface Mount | Surface Mount, Wettable Flank | Surface Mount | Surface Mount |
| Package / Case | 20-WFQFN, 18 Leads, Exposed Pad | 20-WFQFN, 18 Leads, Exposed Pad | 20-WFQFN, 18 Leads, Exposed Pad | 20-WFQFN, 18 Leads, Exposed Pad | 20-WFQFN, 18 Leads, Exposed Pad |
| Supplier Device Package | 20-QFN (3x4) | 20-QFN (3x4) | 20-QFN (3x4) | 20-QFN (3x4) | 20-QFN (3x4) |
