| Manufacturer | Part # | Datasheet | Description |
 National Semiconductor ... | LM5026MT |  936Kb/23P | Active Clamp Current Mode PWM Controller |
| LM5026MT |  669Kb/22P | Active Clamp Current Mode PWM Controller |
 National Semiconductor ... | LM5026MTX |  936Kb/23P | Active Clamp Current Mode PWM Controller |
| LM5026MTX |  669Kb/22P | Active Clamp Current Mode PWM Controller |
 National Semiconductor ... | LM5026MTX |  936Kb/ 23P | Active Clamp Current Mode PWM Controller |
| LM5026MTX |  669Kb/ 22P | Active Clamp Current Mode PWM Controller |
 National Semiconductor ... | LM5026SD |  936Kb/ 23P | Active Clamp Current Mode PWM Controller |
| LM5026SD |  669Kb/ 22P | Active Clamp Current Mode PWM Controller |
 National Semiconductor ... | LM5026SDX |  936Kb/ 23P | Active Clamp Current Mode PWM Controller |
| LM5026SDX |  669Kb/ 22P | Active Clamp Current Mode PWM Controller |
 National Semiconductor ... | LM5026 |  669Kb/ 22P | Active Clamp Current Mode PWM Controller |
 National Semiconductor ... | LM5020 |  229Kb/ 12P | 100V Current Mode PWM Controller |
| LM5020 |  229Kb/ 12P | 100V Current Mode PWM Controller |
| LM5020 |  629Kb/ 13P | 100V Current Mode PWM Controller |