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| Part Number | LT1271CQ#PBF | LT1271CT#PBF | LT1171CQ#PBF |
|---|---|---|---|
| Manufacturer | Analog Devices Inc. | Analog Devices Inc. | Analog Devices Inc. |
| Product Status | Active | Active | Active |
| Function | Step-Up, Step-Down, Step-Up/Step-Down | Step-Up, Step-Down, Step-Up/Step-Down | Step-Up, Step-Down, Step-Up/Step-Down |
| Output Configuration | Positive or Negative | Positive or Negative | Positive or Negative |
| Topology | Buck, Boost, Buck-Boost, Flyback | Buck, Boost, Buck-Boost, Flyback | Buck, Boost, Cuk, Flyback, Forward Converter |
| Output Type | Adjustable | Adjustable | Adjustable |
| Number of Outputs | 1 | 1 | 1 |
| Voltage - Input (Min) | 3.5V | 3.5V | 3V |
| Voltage - Input (Max) | 30V | 30V | 40V |
| Voltage - Output (Min/Fixed) | 1.244V | 1.244V | 1.244V |
| Voltage - Output (Max) | 60V (Switch) | 60V (Switch) | 65V (Switch) |
| Current - Output | 4A (Switch) | 4A (Switch) | 2.5A (Switch) |
| Frequency - Switching | 60kHz | 60kHz | 100kHz |
| Synchronous Rectifier | No | No | No |
| Operating Temperature | 0°C ~ 100°C (TA) | 0°C ~ 100°C (TA) | 0°C ~ 100°C (TJ) |
| Mounting Type | Surface Mount | Through Hole | Surface Mount |
| Package / Case | TO-263-6, D²Pak (5 Leads + Tab), TO-263BA | TO-220-5 | TO-263-6, D²Pak (5 Leads + Tab), TO-263BA |
| Supplier Device Package | 5-DDPAK | TO-220-5 | 5-DDPAK |
