| Manufacturer | Part # | Datasheet | Description |
 National Semiconductor ... | LM2674 |  440Kb/26P | SIMPLE SWITCHER Power Converter High Efficiency 500 mA Step-Down Voltage Regulator |
 National Semiconductor ... | LM2674LD-12 |  440Kb/26P | SIMPLE SWITCHER Power Converter High Efficiency 500 mA Step-Down Voltage Regulator |
| LM2674LD-3.3 |  440Kb/26P | SIMPLE SWITCHER Power Converter High Efficiency 500 mA Step-Down Voltage Regulator |
 National Semiconductor ... | LM2674LD-5.0 |  440Kb/26P | SIMPLE SWITCHER Power Converter High Efficiency 500 mA Step-Down Voltage Regulator |
 National Semiconductor ... | LM2674LD-ADJ |  440Kb/26P | SIMPLE SWITCHER Power Converter High Efficiency 500 mA Step-Down Voltage Regulator |
 National Semiconductor ... | LM2674LDX-12 |  440Kb/26P | SIMPLE SWITCHER Power Converter High Efficiency 500 mA Step-Down Voltage Regulator |
| LM2674LDX-3.3 |  440Kb/26P | SIMPLE SWITCHER Power Converter High Efficiency 500 mA Step-Down Voltage Regulator |
 National Semiconductor ... | LM2674LDX-5.0 |  440Kb/26P | SIMPLE SWITCHER Power Converter High Efficiency 500 mA Step-Down Voltage Regulator |
 National Semiconductor ... | LM2674LDX-ADJ |  440Kb/26P | SIMPLE SWITCHER Power Converter High Efficiency 500 mA Step-Down Voltage Regulator |