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| Part Number | L6738TR | L6739TR | L6728TR | L6730TR | L6732TR | L6738ATR |
|---|---|---|---|---|---|---|
| Manufacturer | STMicroelectronics | STMicroelectronics | STMicroelectronics | STMicroelectronics | STMicroelectronics | STMicroelectronics |
| Product Status | Obsolete | Active | Obsolete | Obsolete | Obsolete | Obsolete |
| Output Type | 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 |
| Output Configuration | Positive | Positive | Positive | Positive | Positive | Positive |
| Topology | Buck | Buck | Buck | Buck | Buck | Buck |
| Number of Outputs | 1 | 1 | 1 | 1 | 1 | 1 |
| Output Phases | 1 | 1 | 1 | 1 | 1 | 1 |
| Voltage - Supply (Vcc/Vdd) | 5V ~ 12V | 4.75V ~ 13.2V | 5V ~ 12V | 4.5V ~ 14V | 4.5V ~ 14V | 5V ~ 12V |
| Frequency - Switching | 200kHz | 200kHz | 300kHz | 100kHz ~ 1MHz | 250kHz, 500kHz | 200kHz |
| Duty Cycle (Max) | 100% | 100% | 80% | 100% | 100% | 100% |
| Synchronous Rectifier | Yes | Yes | Yes | Yes | Yes | Yes |
| Clock Sync | Yes | No | No | Yes | Yes | No |
| Serial Interfaces | - | - | - | - | - | - |
| Control Features | Enable, Frequency Control, Phase Control, Power Good | Enable, Frequency Control, Phase Control, Power Good | Enable, Phase Control, Power Good | Enable, Frequency Control, Phase Control, Power Good, Soft Start | Current Limit, Enable, Phase Control, Power Good, Soft Start | Enable, Frequency Control, Phase Control, Power Good |
| Operating Temperature | -40°C ~ 125°C (TJ) | -40°C ~ 125°C (TJ) | -40°C ~ 125°C (TJ) | -40°C ~ 85°C (TA) | -40°C ~ 85°C (TA) | -40°C ~ 125°C (TJ) |
| Mounting Type | Surface Mount | Surface Mount | Surface Mount | Surface Mount | Surface Mount | Surface Mount |
| Package / Case | 16-VQFN Exposed Pad | 16-VFQFN Exposed Pad | 10-VFDFN Exposed Pad | 20-TSSOP (0.173", 4.40mm Width) Exposed Pad | 16-PowerTSSOP (0.173", 4.40mm Width) | 16-VFQFN Exposed Pad |
| Supplier Device Package | 16-VFQFPN (3x3) | 16-VFQFN (3x3) | 10-DFN (3x3) | 20-HTSSOP | 16-HTSSOP | 16-VFQFPN (3x3) |
