| Part Number | LT8640HUDC#TRPBF | LT8640HUDCF#TRPBF | 
|---|---|---|
| Manufacturer | Analog Devices Inc. | Analog Devices Inc. | 
| Category | PMIC - Voltage Regulators - DC DC Switching Regulators | PMIC - Voltage Regulators - DC DC Switching Regulators | 
|   |   | |
| Product Status | Active | Active | 
| Function | Step-Down | Step-Down | 
| Output Configuration | Positive | Positive | 
| Topology | Buck | Buck | 
| Output Type | Adjustable | Adjustable | 
| Number of Outputs | 1 | 1 | 
| Voltage - Input (Min) | 3.4V | 3.4V | 
| Voltage - Input (Max) | 42V | 42V | 
| Voltage - Output (Min/Fixed) | 0.97V | 0.97V | 
| Voltage - Output (Max) | 42V | 42V | 
| Current - Output | 5A | 5A | 
| Frequency - Switching | 210kHz ~ 2MHz | 210kHz ~ 2MHz | 
| Synchronous Rectifier | Yes | Yes | 
| Operating Temperature | -40°C ~ 150°C (TJ) | -40°C ~ 150°C (TJ) | 
| Mounting Type | Surface Mount | Surface Mount, Wettable Flank | 
| Package / Case | 20-WFQFN, 18 Leads, Exposed Pad | 20-WFQFN, 18 Leads, Exposed Pad | 
| Supplier Device Package | 20-QFN (3x4) | 20-QFN (3x4) |