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| Part Number | ISL6439IRZ-T | ISL6439AIRZ-T | ISL6439IBZ-T | ISL6439IR-T |
|---|---|---|---|---|
| Manufacturer | Renesas Electronics America Inc | Renesas Electronics America Inc | Renesas Electronics America Inc | Intersil |
| Product Status | Obsolete | Obsolete | Obsolete | 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 | 300kHz | 600kHz | 300kHz | 300kHz |
| 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 | 14-SOIC (0.154", 3.90mm Width) | 16-VQFN Exposed Pad |
| Supplier Device Package | 16-QFN (5x5) | 16-QFN (5x5) | 14-SOIC | 16-QFN (5x5) |
