| Part Number | LT3641IUFD#PBF | LT3640IUFD#PBF |
|---|---|---|
| Manufacturer | Analog Devices Inc. | Linear Technology |
| Category | PMIC - Voltage Regulators - DC DC Switching Regulators | PMIC - Voltage Regulators - DC DC Switching Regulators |
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| Product Status | Active | Obsolete |
| Function | Step-Down | Step-Down |
| Output Configuration | Positive | Positive |
| Topology | Buck | Buck |
| Output Type | Adjustable | Adjustable |
| Number of Outputs | 2 | 2 |
| Voltage - Input (Min) | 2.5V | 2.5V |
| Voltage - Input (Max) | 42V | 35V |
| Voltage - Output (Min/Fixed) | 0.6V, 1.265V | 0.6V, 1.265V |
| Voltage - Output (Max) | 39.48V | 33.97V |
| Current - Output | 1.3A, 1.1A | 1.1A, 1.3A |
| Frequency - Switching | 500kHz ~ 2MHz | 350kHz ~ 2.5MHz |
| Synchronous Rectifier | Both | No |
| Operating Temperature | -40°C ~ 125°C (TJ) | -40°C ~ 125°C (TJ) |
| Mounting Type | Surface Mount | Surface Mount |
| Package / Case | 28-WFQFN Exposed Pad | 28-WFQFN Exposed Pad |
| Supplier Device Package | 28-QFN (4x5) | 28-QFN (4x5) |