| Part Number | LM2587T-12 | LM2577T-12 |
|---|---|---|
| Manufacturer | National Semiconductor | National Semiconductor |
| Category | PMIC - Voltage Regulators - DC DC Switching Regulators | PMIC - Voltage Regulators - DC DC Switching Regulators |
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| Product Status | Active | Obsolete |
| Function | Step-Up, Step-Up/Step-Down | Step-Up, Step-Up/Step-Down |
| Output Configuration | Positive | Positive or Negative |
| Topology | Boost, Flyback, Forward Converter | Boost, Flyback, Forward Converter |
| Output Type | Fixed | Fixed |
| Number of Outputs | 1 | 1 |
| Voltage - Input (Min) | 4V | 3.5V |
| Voltage - Input (Max) | 40V | 40V |
| Voltage - Output (Min/Fixed) | 12V | 12V |
| Voltage - Output (Max) | - | - |
| Current - Output | 5A (Switch) | 3A (Switch) |
| Frequency - Switching | 100kHz | 52kHz |
| Synchronous Rectifier | No | No |
| Operating Temperature | -40°C ~ 125°C (TJ) | -40°C ~ 125°C (TJ) |
| Mounting Type | Through Hole | Through Hole |
| Package / Case | TO-220-5 Formed Leads | TO-220-5 |
| Supplier Device Package | TO-220-5 | TO-220-5 |