| Part Number | LM3578AN | LM3578AM | 
|---|---|---|
| Manufacturer | National Semiconductor | National Semiconductor | 
| Category | PMIC - Voltage Regulators - DC DC Switching Regulators | PMIC - Voltage Regulators - DC DC Switching Regulators | 
|   |   | |
| Product Status | Active | Active | 
| Function | Step-Up, Step-Down, Step-Up/Step-Down | Step-Up, Step-Down, Step-Up/Step-Down | 
| Output Configuration | Positive or Negative | Positive or Negative | 
| Topology | Buck, Boost, Buck-Boost | Buck, Boost, Buck-Boost | 
| Output Type | - | - | 
| Number of Outputs | 1 | 1 | 
| Voltage - Input (Min) | 2V | 2V | 
| Voltage - Input (Max) | 40V | 40V | 
| Voltage - Output (Min/Fixed) | - | - | 
| Voltage - Output (Max) | - | - | 
| Current - Output | 750mA (Switch) | 750mA (Switch) | 
| Frequency - Switching | 20kHz | 20kHz | 
| Synchronous Rectifier | No | No | 
| Operating Temperature | 0°C ~ 70°C (TA) | 0°C ~ 70°C (TA) | 
| Mounting Type | Through Hole | Surface Mount | 
| Package / Case | 8-DIP (0.300", 7.62mm) | 8-SOIC (0.154", 3.90mm Width) | 
| Supplier Device Package | 8-PDIP | 8-SOIC |