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| Part Number | LT3959EUHE#PBF | LT3959IUHE#PBF | LT3957EUHE#PBF | LT3958EUHE#PBF |
|---|---|---|---|---|
| Manufacturer | Analog Devices Inc. | Analog Devices Inc. | Analog Devices Inc. | Analog Devices Inc. |
| Product Status | Active | Active | Active | Active |
| Function | Step-Up, Step-Up/Step-Down | Step-Up, Step-Up/Step-Down | Step-Up, Step-Up/Step-Down | Step-Up, Step-Up/Step-Down |
| Output Configuration | Positive or Negative | Positive or Negative | Positive or Negative | Positive or Negative |
| Topology | Boost, Cuk, SEPIC | Boost, Cuk, SEPIC | Boost, Cuk, Flyback, SEPIC | Boost, Cuk, Flyback, SEPIC |
| Output Type | Adjustable | Adjustable | Adjustable | Adjustable |
| Number of Outputs | 1 | 1 | 1 | 1 |
| Voltage - Input (Min) | 1.6V | 1.6V | 3V | 5V |
| Voltage - Input (Max) | 40V | 40V | 40V | 80V |
| Voltage - Output (Min/Fixed) | 0.8V | 0.8V | 1.6V | 1.6V |
| Voltage - Output (Max) | 40V (Switch) | 40V (Switch) | 40V (Switch) | 84V (Switch) |
| Current - Output | 6A (Switch) | 6A (Switch) | 5A (Switch) | 3.3A (Switch) |
| Frequency - Switching | 100kHz ~ 1MHz | 100kHz ~ 1MHz | 100kHz ~ 1MHz | 100kHz ~ 1MHz |
| Synchronous Rectifier | No | No | No | No |
| Operating Temperature | -40°C ~ 125°C (TJ) | -40°C ~ 125°C (TJ) | -40°C ~ 125°C (TJ) | -40°C ~ 125°C (TJ) |
| Mounting Type | Surface Mount | Surface Mount | Surface Mount | Surface Mount |
| Package / Case | 36-WFQFN, 28 Leads, Exposed Pad | 36-WFQFN, 28 Leads, Exposed Pad | 36-WFQFN, 28 Leads, Exposed Pad | 36-WFQFN, 28 Leads, Exposed Pad |
| Supplier Device Package | 36-QFN (5x6) | 36-QFN (5x6) | 36-QFN (5x6) | 36-QFN (5x6) |
