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| Part Number | LTC3899EUHF#TRPBF | LTC3899IUHF#TRPBF | LTC3899HUHF#TRPBF | LTC3897EUHF#TRPBF |
|---|---|---|---|---|
| Manufacturer | Analog Devices Inc. | Analog Devices Inc. | Analog Devices Inc. | Analog Devices Inc. |
| Product Status | Active | Active | Active | Active |
| Output Type | Transistor Driver | Transistor Driver | Transistor Driver | Transistor Driver |
| Function | Step-Down | Step-Down | Step-Down | Step-Up |
| Output Configuration | Positive | Positive | Positive | Positive |
| Topology | Buck, Buck-Boost | Buck, Buck-Boost | Buck, Buck-Boost | Boost |
| Number of Outputs | 3 | 3 | 3 | 2 |
| Output Phases | 2 | 2 | 2 | 2 |
| Voltage - Supply (Vcc/Vdd) | 4.5V ~ 60V | 4.5V ~ 60V | 4.5V ~ 60V | 4.5V ~ 65V |
| Frequency - Switching | 105kHz ~ 835kHz, 350kHz ~ 535kHz | 105kHz ~ 835kHz, 350kHz ~ 535kHz | 105kHz ~ 835kHz, 350kHz ~ 535kHz | 75kHz ~ 850kHz |
| Duty Cycle (Max) | 100% | 100% | 100% | - |
| Synchronous Rectifier | Yes | Yes | Yes | Yes |
| Clock Sync | No | No | No | Yes |
| Serial Interfaces | - | - | - | - |
| Control Features | Enable, Frequency Control, Soft Start, Tracking | Enable, Frequency Control, Soft Start, Tracking | Enable, Frequency Control, Soft Start, Tracking | Current Limit, Frequency Control, Overcurrent, Ramping |
| Operating Temperature | -40°C ~ 125°C (TJ) | -40°C ~ 125°C (TJ) | -40°C ~ 150°C (TJ) | -40°C ~ 125°C (TJ) |
| Mounting Type | Surface Mount | Surface Mount | Surface Mount | Surface Mount |
| Package / Case | 38-WFQFN Exposed Pad | 38-WFQFN Exposed Pad | 38-WFQFN Exposed Pad | 38-WFQFN Exposed Pad |
| Supplier Device Package | 38-QFN (5x7) | 38-QFN (5x7) | 38-QFN (5x7) | 38-QFN (5x7) |
