| Manufacturer | Part # | Datasheet | Description |
 National Semiconductor ... | LM309H |  252Kb/8P | 5-Volt Regulator |
 National Semiconductor ... | LM309K |  252Kb/ 8P | 5-Volt Regulator |
 National Semiconductor ... | LM309KSTEEL |  252Kb/ 8P | 5-Volt Regulator |
 National Semiconductor ... | LM3000 |  815Kb/ 26P | Dual Synchronous Emulated Current-Mode Controller |
 National Semiconductor ... | LM3000ASQ |  815Kb/ 26P | Dual Synchronous Emulated Current-Mode Controller |
| LM3000ASQX |  815Kb/ 26P | Dual Synchronous Emulated Current-Mode Controller |
| LM3000SQ |  815Kb/ 26P | Dual Synchronous Emulated Current-Mode Controller |