| Manufacturer | Part # | Datasheet | Description |
 National Semiconductor ... | LM2657MTC |  959Kb/26P | Dual Synchronous Buck Regulator Controller |
 National Semiconductor ... | LM2657MTCX |  959Kb/26P | Dual Synchronous Buck Regulator Controller |
 National Semiconductor ... | LM2657MTCX |  959Kb/ 26P | Dual Synchronous Buck Regulator Controller |
 National Semiconductor ... | LM2650 |  215Kb/ 11P | Synchronous Step-Down DC/DC Converter |
 National Semiconductor ... | LM2650M-ADJ |  215Kb/ 11P | Synchronous Step-Down DC/DC Converter |
 National Semiconductor ... | LM2650MX-ADJ |  215Kb/ 11P | Synchronous Step-Down DC/DC Converter |
 National Semiconductor ... | LM2651 |  222Kb/ 10P | 1.5A High Efficiency Synchronous Switching Regulator |
| LM2651 |  630Kb/ 11P | 1.5A High Efficiency Synchronous Switching Regulator |