| Manufacturer | Part # | Datasheet | Description |
 National Semiconductor ... | LM2744 |  663Kb/22P | Low Voltage N-Channel MOSFET Synchronous Buck Regulator Controller with External Reference |
 National Semiconductor ... | LM27402 |  670Kb/32P | High Performance Synchronous Buck Controller with DCR Current Sensing |
| LM27402 |  167Kb/4P | Current Limit Application Circuits Application Circuits |
 National Semiconductor ... | LM27402MH |  670Kb/32P | High Performance Synchronous Buck Controller with DCR Current Sensing |
 National Semiconductor ... | LM27402MHX |  670Kb/32P | High Performance Synchronous Buck Controller with DCR Current Sensing |
 National Semiconductor ... | LM27402SQ |  670Kb/32P | High Performance Synchronous Buck Controller with DCR Current Sensing |
 National Semiconductor ... | LM27402SQX |  670Kb/32P | High Performance Synchronous Buck Controller with DCR Current Sensing |
 National Semiconductor ... | LM27402 |  167Kb/4P | Current Limit Application Circuits Application Circuits |