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| Part Number | LTC3126EUFD#TRPBF | LTC3128EUFD#TRPBF | LTC3126IUFD#TRPBF |
|---|---|---|---|
| Manufacturer | Analog Devices Inc. | Analog Devices Inc. | Analog Devices Inc. |
| Product Status | Active | Active | Active |
| Function | Step-Down | Step-Up/Step-Down | Step-Down |
| Output Configuration | Positive | Positive | Positive |
| Topology | Buck | Buck-Boost | Buck |
| Output Type | Adjustable | Adjustable | Adjustable |
| Number of Outputs | 1 | 1 | 1 |
| Voltage - Input (Min) | 2.4V | 1.73V | 2.4V |
| Voltage - Input (Max) | 42V | 5.5V | 42V |
| Voltage - Output (Min/Fixed) | 0.818V | 1.8V | 0.818V |
| Voltage - Output (Max) | 42V | 5.5V | 42V |
| Current - Output | 2.5A | 3A | 2.5A |
| Frequency - Switching | 200kHz ~ 2.2MHz | 1.2MHz | 200kHz ~ 2.2MHz |
| Synchronous Rectifier | Yes | Yes | Yes |
| Operating Temperature | -40°C ~ 125°C (TA) | -40°C ~ 125°C (TJ) | -40°C ~ 125°C (TA) |
| Mounting Type | Surface Mount | Surface Mount | Surface Mount |
| Package / Case | 28-WFQFN Exposed Pad | 20-WFQFN Exposed Pad | 28-WFQFN Exposed Pad |
| Supplier Device Package | 28-QFN (4x5) | 20-QFN (4x5) | 28-QFN (4x5) |
