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| Part Number | L6728ATR | L6728TR | L6728DTR | L6738ATR | L6728HTR | L6725ATR | L6726ATR | L6728AHTR |
|---|---|---|---|---|---|---|---|---|
| Manufacturer | STMicroelectronics | STMicroelectronics | STMicroelectronics | STMicroelectronics | STMicroelectronics | STMicroelectronics | STMicroelectronics | STMicroelectronics |
| Product Status | Obsolete | Obsolete | Obsolete | Obsolete | Obsolete | Obsolete | Active | Obsolete |
| Output Type | Transistor Driver | 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 | Step-Down |
| Output Configuration | Positive | Positive | Positive | Positive | Positive | Positive | Positive | Positive |
| Topology | Buck | Buck | Buck | Buck | Buck | Buck | Buck | Buck |
| Number of Outputs | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 |
| Output Phases | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 |
| Voltage - Supply (Vcc/Vdd) | 5V ~ 12V | 5V ~ 12V | 5V ~ 12V | 5V ~ 12V | 5V ~ 12V | 4.5V ~ 18V | 4.1V ~ 13.2V | 5V ~ 12V |
| Frequency - Switching | 600kHz | 300kHz | 300kHz | 200kHz | 300kHz | 250kHz, 500kHz | 270kHz | 600kHz |
| Duty Cycle (Max) | 67% | 80% | 80% | 100% | 80% | 100% | 80% | 67% |
| Synchronous Rectifier | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes |
| Clock Sync | No | No | No | No | No | Yes | No | No |
| Serial Interfaces | - | - | - | - | - | - | - | - |
| Control Features | Enable, Phase Control, Power Good | Enable, Phase Control, Power Good | Enable, Phase Control, Power Good | Enable, Frequency Control, Phase Control, Power Good | Enable, Phase Control, Power Good | Current Limit, Phase Control, Power Good, Soft Start | Enable, Frequency Control, Phase Control, Power Good | Enable, Phase Control, Power Good |
| Operating Temperature | -40°C ~ 125°C (TJ) | -40°C ~ 125°C (TJ) | -40°C ~ 125°C (TJ) | -40°C ~ 125°C (TJ) | -40°C ~ 125°C (TJ) | -40°C ~ 85°C (TA) | -40°C ~ 150°C (TJ) | -40°C ~ 125°C (TJ) |
| Mounting Type | Surface Mount | Surface Mount | Surface Mount | Surface Mount | Surface Mount | Surface Mount | Surface Mount | Surface Mount |
| Package / Case | 10-VFDFN Exposed Pad | 10-VFDFN Exposed Pad | 10-VFDFN Exposed Pad | 16-VFQFN Exposed Pad | 10-VFDFN Exposed Pad | 16-SOIC (0.154", 3.90mm Width) | 8-SOIC (0.154", 3.90mm Width) | 10-VFDFN Exposed Pad |
| Supplier Device Package | 10-DFN (3x3) | 10-DFN (3x3) | 10-DFN (3x3) | 16-VFQFPN (3x3) | 10-DFN (3x3) | 16-SO | 8-SOIC | 10-VFDFPN (3x3) |
