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| Part Number | LTC3866IUF#PBF | LTC3867IUF#PBF | LTC3869IUF#PBF | LTC3866EUF#PBF |
|---|---|---|---|---|
| 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-Down |
| Output Configuration | Positive | Positive | Positive | Positive |
| Topology | Buck | Buck | Buck | Buck |
| Number of Outputs | 1 | 1 | 2 | 1 |
| Output Phases | 1 | 1 | 2 | 1 |
| Voltage - Supply (Vcc/Vdd) | 4.5V ~ 38V | 4V ~ 38V | 4V ~ 38V | 4.5V ~ 38V |
| Frequency - Switching | 250kHz ~ 770kHz | 200kHz ~ 1.2MHz | 250kHz ~ 780kHz | 250kHz ~ 770kHz |
| Duty Cycle (Max) | - | 98% | 95% | - |
| Synchronous Rectifier | Yes | Yes | Yes | Yes |
| Clock Sync | No | No | No | No |
| Serial Interfaces | - | - | - | - |
| Control Features | Current Limit, Enable, Frequency Control, Power Good, Soft Start, Tracking | Current Limit, Enable, Frequency Control, Power Good, Soft Start, Tracking | Current Limit, Enable, Frequency Control, Power Good, Soft Start, Tracking | Current Limit, Enable, Frequency Control, Power Good, Soft Start, Tracking |
| 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 | 24-WFQFN Exposed Pad | 24-WFQFN Exposed Pad | 28-WFQFN Exposed Pad | 24-WFQFN Exposed Pad |
| Supplier Device Package | 24-QFN (4x4) | 24-QFN (4x4) | 28-QFN (4x4) | 24-QFN (4x4) |
