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| Part Number | LTC1439CG#PBF | LTC1439CGW#PBF | LTC1439EG#PBF | LTC1439IG#PBF | LTC1435CG#PBF | LTC1437CG#PBF | LTC1438CG#PBF |
|---|---|---|---|---|---|---|---|
| Manufacturer | Analog Devices Inc. | Analog Devices Inc. | Analog Devices Inc. | Analog Devices Inc. | Analog Devices Inc. | Analog Devices Inc. | Analog Devices Inc. |
| Product Status | Active | Active | Active | Active | Active | Active | Active |
| Output Type | Transistor Driver | Transistor Driver | Transistor Driver | Transistor Driver | Transistor Driver | Transistor Driver | Transistor Driver |
| Function | Step-Down | Step-Down | Step-Down | Step-Down | Step-Down | Step-Down | Step-Down |
| Output Configuration | Positive | Positive | Positive | Positive | Positive | Positive | Positive |
| Topology | Buck | Buck | Buck | Buck | Buck | Buck | Buck |
| Number of Outputs | 2 | 2 | 2 | 2 | 1 | 1 | 2 |
| Output Phases | 1 | 1 | 1 | 1 | 1 | 1 | 1 |
| Voltage - Supply (Vcc/Vdd) | 3.5V ~ 30V | 3.5V ~ 30V | 3.5V ~ 30V | 3.5V ~ 30V | 3.5V ~ 30V | 3.5V ~ 30V | 3.5V ~ 30V |
| Frequency - Switching | Up to 400kHz | Up to 400kHz | Up to 400kHz | Up to 400kHz | Up to 400kHz | Up to 400kHz | Up to 400kHz |
| Duty Cycle (Max) | 99% | 99% | 99% | 99% | 99% | 99% | 99% |
| Synchronous Rectifier | Yes | Yes | Yes | Yes | Yes | Yes | Yes |
| Clock Sync | No | No | No | No | No | No | No |
| Serial Interfaces | - | - | - | - | - | - | - |
| Control Features | Enable, Power on Reset, Soft Start | Enable, Power on Reset, Soft Start | Enable, Power on Reset, Soft Start | Enable, Power on Reset, Soft Start | Enable, Soft Start | Enable, Power on Reset, Soft Start | Enable, Power on Reset, Soft Start |
| Operating Temperature | 0°C ~ 70°C (TA) | 0°C ~ 70°C (TA) | -40°C ~ 85°C (TA) | -40°C ~ 85°C (TA) | 0°C ~ 70°C (TA) | 0°C ~ 70°C (TA) | 0°C ~ 70°C (TA) |
| Mounting Type | Surface Mount | Surface Mount | Surface Mount | Surface Mount | Surface Mount | Surface Mount | Surface Mount |
| Package / Case | 36-SSOP (0.209", 5.30mm Width) | 36-BSOP (0.295", 7.50mm Width) | 36-SSOP (0.209", 5.30mm Width) | 36-SSOP (0.209", 5.30mm Width) | 16-SSOP (0.209", 5.30mm Width) | 28-SSOP (0.209", 5.30mm Width) | 28-SSOP (0.209", 5.30mm Width) |
| Supplier Device Package | 36-SSOP | 36-SSOP | 36-SSOP | 36-SSOP | 16-SSOP | 28-SSOP | 28-SSOP |
