| Manufacturer | Part # | Datasheet | Description |
 National Semiconductor ... | LM15777 |  862Kb/27P | SIMPLE SWITCHER-R Step-Up Voltage Regulator |
 National Semiconductor ... | LM1577-12 |  889Kb/27P | SIMPLE SWITCHER Step-Up Voltage Regulator |
| LM1577-15 |  889Kb/27P | SIMPLE SWITCHER Step-Up Voltage Regulator |
| LM1577-ADJ |  889Kb/27P | SIMPLE SWITCHER Step-Up Voltage Regulator |
| LM1577K-12 |  862Kb/27P | SIMPLE SWITCHER-R Step-Up Voltage Regulator |
| LM1577K-15 |  862Kb/27P | SIMPLE SWITCHER-R Step-Up Voltage Regulator |
| LM1577K-883 |  889Kb/27P | SIMPLE SWITCHER Step-Up Voltage Regulator |
| LM1577K-883 |  862Kb/27P | SIMPLE SWITCHER-R Step-Up Voltage Regulator |
| LM1577K883 |  862Kb/27P | SIMPLE SWITCHER-R Step-Up Voltage Regulator |
| LM1577KADJ |  862Kb/27P | SIMPLE SWITCHER-R Step-Up Voltage Regulator |
| LM1577 |  1Mb/31P | SIMPLE SWITCHER짰 Step-Up Voltage Regulator |
 National Semiconductor ... | LM1572 |  584Kb/17P | 1.5A, 500kHz Step-down Voltage Regulator |
 National Semiconductor ... | LM1575 |  848Kb/28P | SIMPLE SWITCHER짰 1A Step-Down Voltage Regulator |
| LM1575 |  725Kb/27P | SIMPLE SWITCHER 1A Step-Down Voltage Regulator |
| LM1575-12 |  252Kb/14P | SIMPLE SWITCHER 1A STEP-DOWN VOLTAGE REGULATOR |
| LM1575-15 |  252Kb/14P | SIMPLE SWITCHER(TM) 1A STEP-DOWN VOLTAGE REGULATOR |