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| Part Number | LTC1149CS#PBF | LTC1159CS#PBF | LTC1143CS#PBF | LTC1148CS#PBF | LTC1149CN#PBF |
|---|---|---|---|---|---|
| Manufacturer | Analog Devices Inc. | Analog Devices Inc. | Linear Technology | Analog Devices Inc. | Analog Devices Inc. |
| Product Status | Active | 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 or Negative | - | Positive | Positive |
| Topology | Buck | Buck | - | Buck | Buck |
| Number of Outputs | 1 | 1 | - | 1 | 1 |
| Output Phases | 1 | 1 | - | 1 | 1 |
| Voltage - Supply (Vcc/Vdd) | Up to 48V | 4V ~ 40V | - | 3.5V ~ 20V | Up to 48V |
| Frequency - Switching | Up to 250kHz | Up to 250kHz | - | Up to 250kHz | Up to 250kHz |
| Duty Cycle (Max) | 100% | 100% | - | 100% | 100% |
| Synchronous Rectifier | Yes | Yes | - | Yes | Yes |
| Clock Sync | No | No | - | No | No |
| Serial Interfaces | - | - | - | - | - |
| Control Features | Current Limit, Enable | Current Limit, Enable | - | Current Limit, Enable | Current Limit, Enable |
| Operating Temperature | 0°C ~ 70°C (TA) | 0°C ~ 70°C (TA) | - | 0°C ~ 70°C (TA) | 0°C ~ 70°C (TA) |
| Mounting Type | Surface Mount | Surface Mount | - | Surface Mount | Through Hole |
| Package / Case | 16-SOIC (0.154", 3.90mm Width) | 16-SOIC (0.154", 3.90mm Width) | - | 14-SOIC (0.154", 3.90mm Width) | 16-DIP (0.300", 7.62mm) |
| Supplier Device Package | 16-SO | 16-SO | - | 14-SO | 16-PDIP |
