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| Part Number | LT1243CS8#PBF | LT1243IS8#PBF | LT1247CS8#PBF | LT1245CS8#PBF | LT1241CS8#PBF | LT1243CN8#PBF |
|---|---|---|---|---|---|---|
| Manufacturer | Analog Devices Inc. | Analog Devices Inc. | Analog Devices Inc. | Analog Devices Inc. | Linear Technology | Analog Devices Inc. |
| Product Status | Active | Active | Active | Active | Obsolete | Active |
| 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, Isolation Capable | Positive, Isolation Capable | Positive | Positive, Isolation Capable | Positive, Isolation Capable | Positive, Isolation Capable |
| 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) | 8.2V ~ 25V | 8.2V ~ 25V | 8.4V ~ 25V | 8.2V ~ 25V | 7.6V ~ 25V | 8.2V ~ 25V |
| Frequency - Switching | 500kHz | 500kHz | 1MHz | 500kHz | 500kHz | 500kHz |
| Duty Cycle (Max) | 96% | 96% | 100% | 48% | 48% | 96% |
| Synchronous Rectifier | No | No | No | No | No | No |
| Clock Sync | No | No | No | No | Yes | No |
| Serial Interfaces | - | - | - | - | - | - |
| Control Features | Frequency Control | Frequency Control | Frequency Control | Frequency Control | Dead Time Control, Frequency Control | Frequency Control |
| Operating Temperature | 0°C ~ 100°C (TJ) | -40°C ~ 100°C (TA) | 0°C ~ 100°C (TJ) | 0°C ~ 100°C (TJ) | 0°C ~ 100°C (TJ) | 0°C ~ 100°C (TJ) |
| Mounting Type | Surface Mount | Surface Mount | Surface Mount | Surface Mount | Surface Mount | Through Hole |
| Package / Case | 8-SOIC (0.154", 3.90mm Width) | 8-SOIC (0.154", 3.90mm Width) | 8-SOIC (0.154", 3.90mm Width) | 8-SOIC (0.154", 3.90mm Width) | 8-SOIC (0.154", 3.90mm Width) | 8-DIP (0.300", 7.62mm) |
| Supplier Device Package | 8-SO | 8-SO | 8-SO | 8-SO | 8-SO | 8-PDIP |
