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| Part Number | LT8643SHV-2#PBF | LT8645SHV-2#PBF | LT8643SIV-2#PBF | LT8640SHV-2#PBF | LT8643SEV-2#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 | 3.4V | 3.4V | 3.4V | 3.4V |
| Voltage - Input (Max) | 42V | 65V | 42V | 42V | 42V |
| Voltage - Output (Min/Fixed) | 0.97V | 0.97V | 0.97V | 0.97V | 0.97V |
| Voltage - Output (Max) | 42V | 65V | 42V | 42V | 42V |
| Current - Output | 6A | 8A | 6A | 6A | 6A |
| Frequency - Switching | 180kHz ~ 2.1MHz | 200kHz ~ 2.2MHz | 180kHz ~ 2.1MHz | 200kHz ~ 3MHz | 180kHz ~ 2.1MHz |
| Synchronous Rectifier | Yes | Yes | Yes | Yes | Yes |
| Operating Temperature | -40°C ~ 150°C | -40°C ~ 150°C (TJ) | -40°C ~ 125°C | -40°C ~ 150°C (TJ) | -40°C ~ 125°C |
| Mounting Type | Surface Mount | Surface Mount | Surface Mount | Surface Mount | Surface Mount |
| Package / Case | 24-TFQFN Exposed Pad | 32-TFQFN Exposed Pad | 24-TFQFN Exposed Pad | 24-TFQFN Exposed Pad | 24-TFQFN Exposed Pad |
| Supplier Device Package | 24-LQFN (4x4) | 32-LQFN (6x4) | 24-LQFN (4x4) | 24-LQFN (4x4) | 24-LQFN (4x4) |
