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| Part Number | LTC3728LIUH#PBF | LTC3728IUH#PBF | LTC3728LCUH#PBF | LTC3728LEUH#PBF |
|---|---|---|---|---|
| Manufacturer | Analog Devices Inc. | Analog Devices Inc. | Analog Devices Inc. | Analog Devices Inc. |
| Product Status | Active | Active | Active | Active |
| 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 | 2 | 2 | 2 | 2 |
| Output Phases | 2 | 2 | 2 | 2 |
| Voltage - Supply (Vcc/Vdd) | 4.5V ~ 28V | 3.5V ~ 30V | 4.5V ~ 28V | 4.5V ~ 28V |
| Frequency - Switching | 260kHz ~ 550kHz | 260kHz ~ 550kHz | 260kHz ~ 550kHz | 260kHz ~ 550kHz |
| Duty Cycle (Max) | 99.4% | 99.4% | 99.4% | 99.4% |
| Synchronous Rectifier | Yes | Yes | Yes | Yes |
| Clock Sync | No | No | No | No |
| Serial Interfaces | - | - | - | - |
| Control Features | Enable, Power Good, Soft Start | Enable, Power Good, Soft Start | Enable, Power Good, Soft Start | Enable, Power Good, Soft Start |
| Operating Temperature | -40°C ~ 85°C (TA) | -40°C ~ 85°C (TA) | 0°C ~ 85°C (TA) | -40°C ~ 85°C (TA) |
| Mounting Type | Surface Mount | Surface Mount | Surface Mount | Surface Mount |
| Package / Case | 32-WFQFN Exposed Pad | 32-WFQFN Exposed Pad | 32-WFQFN Exposed Pad | 32-WFQFN Exposed Pad |
| Supplier Device Package | 32-QFN (5x5) | 32-QFN (5x5) | 32-QFN (5x5) | 32-QFN (5x5) |
