| 制造商 | 部件名 | 数据表 | 功能描述 |
 National Semiconductor ... | LP2989IMM-3.3 |  616Kb/19P | Micropower/Low Noise, 500 mA Ultra Low-Dropout Regulator For Use with Ceramic Output Capacitors |
 National Semiconductor ... | LP2989IMM-3.0 |  616Kb/19P | Micropower/Low Noise, 500 mA Ultra Low-Dropout Regulator For Use with Ceramic Output Capacitors |
 National Semiconductor ... | LP2989IMM-1.8 |  685Kb/11P | Micropower 500 mA Low Noise Low Dropout Regulator for Applications with Output Voltages < 2V Designed for Use with Very Low ESR Output Capacitors |
| LP2989IMM-2.5 |  616Kb/19P | Micropower/Low Noise, 500 mA Ultra Low-Dropout Regulator For Use with Ceramic Output Capacitors |
| LP2989IMM-2.8 |  616Kb/19P | Micropower/Low Noise, 500 mA Ultra Low-Dropout Regulator For Use with Ceramic Output Capacitors |
 National Semiconductor ... | LP2989IMM-5.0 |  616Kb/19P | Micropower/Low Noise, 500 mA Ultra Low-Dropout Regulator For Use with Ceramic Output Capacitors |
 National Semiconductor ... | LP2989IMMX-1.8 |  685Kb/11P | Micropower 500 mA Low Noise Low Dropout Regulator for Applications with Output Voltages < 2V Designed for Use with Very Low ESR Output Capacitors |
| LP2989IMMX-2.5 |  616Kb/19P | Micropower/Low Noise, 500 mA Ultra Low-Dropout Regulator For Use with Ceramic Output Capacitors |
| LP2989IMMX-2.8 |  616Kb/19P | Micropower/Low Noise, 500 mA Ultra Low-Dropout Regulator For Use with Ceramic Output Capacitors |
 National Semiconductor ... | LP2989IMMX-3.0 |  616Kb/19P | Micropower/Low Noise, 500 mA Ultra Low-Dropout Regulator For Use with Ceramic Output Capacitors |
| LP2989IMMX-3.3 |  616Kb/19P | Micropower/Low Noise, 500 mA Ultra Low-Dropout Regulator For Use with Ceramic Output Capacitors |
 National Semiconductor ... | LP2989IMMX-5.0 |  616Kb/19P | Micropower/Low Noise, 500 mA Ultra Low-Dropout Regulator For Use with Ceramic Output Capacitors |