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| Part Number | ISL6439AIR-T | ISL6439IR-T | ISL6439AIRZ-T | ISL6439ACR-T | ISL6439AIB-T |
|---|---|---|---|---|---|
| Manufacturer | Intersil | Intersil | Renesas Electronics America Inc | Intersil | Renesas Electronics America Inc |
| Product Status | Obsolete | Obsolete | Obsolete | Active | Obsolete |
| 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 | 1 | - | 1 |
| Output Phases | 1 | 1 | 1 | - | 1 |
| Voltage - Supply (Vcc/Vdd) | 2.97V ~ 3.63V | 2.97V ~ 3.63V | 2.97V ~ 3.63V | - | 2.97V ~ 3.63V |
| Frequency - Switching | 600kHz | 300kHz | 600kHz | - | 600kHz |
| Duty Cycle (Max) | 100% | 100% | 100% | - | 100% |
| Synchronous Rectifier | Yes | Yes | Yes | - | Yes |
| Clock Sync | No | No | No | - | No |
| Serial Interfaces | - | - | - | - | - |
| Control Features | Enable, Phase Control | Enable, Phase Control | Enable, Phase Control | - | Enable, Phase Control |
| Operating Temperature | -40°C ~ 85°C (TA) | -40°C ~ 85°C (TA) | -40°C ~ 85°C (TA) | - | -40°C ~ 85°C (TA) |
| Mounting Type | Surface Mount | Surface Mount | Surface Mount | - | Surface Mount |
| Package / Case | 16-VQFN Exposed Pad | 16-VQFN Exposed Pad | 16-VQFN Exposed Pad | - | 14-SOIC (0.154", 3.90mm Width) |
| Supplier Device Package | 16-QFN (5x5) | 16-QFN (5x5) | 16-QFN (5x5) | - | 14-SOIC |
