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| Part Number | LM2578AM | LM2578AN | LM2578AMX |
|---|---|---|---|
| Manufacturer | Texas Instruments | National Semiconductor | Texas Instruments |
| Product Status | Not For New Designs | Active | Obsolete |
| Function | 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 | Boost, Buck | Buck, Boost |
| Output Type | - | Adjustable | - |
| Number of Outputs | 1 | 1 | 1 |
| Voltage - Input (Min) | 2V | 2V | 2V |
| Voltage - Input (Max) | 40V | 40V | 40V |
| Voltage - Output (Min/Fixed) | - | 1V | - |
| Voltage - Output (Max) | - | 40V | - |
| Current - Output | 750mA (Switch) | 750mA | 750mA (Switch) |
| Frequency - Switching | 20kHz | 20kHz | 20kHz |
| Synchronous Rectifier | No | No | No |
| Operating Temperature | -40°C ~ 85°C (TA) | -40°C ~ 125°C (TJ) | -40°C ~ 85°C (TA) |
| Mounting Type | Surface Mount | Through Hole | Surface Mount |
| Package / Case | 8-SOIC (0.154", 3.90mm Width) | 8-DIP (0.300", 7.62mm) | 8-SOIC (0.154", 3.90mm Width) |
| Supplier Device Package | 8-SOIC | 8-PDIP | 8-SOIC |
