| Manufacturer | Part # | Datasheet | Description |
 National Semiconductor ... | LP2978 |  102Kb/7P | Micropower SOT, 50 mA Low-Noise Ultra Low-Dropout Regulator |
| LP2978 |  286Kb/8P | Micropower SOT, 50 mA Low-Noise Ultra Low-Dropout Regulator Designed for Use with Very Low ESR Output Capacitors |
| LP2978AIM5-3.8 |  102Kb/7P | Micropower SOT, 50 mA Low-Noise Ultra Low-Dropout Regulator |
| LP2978AIM5-3.8 |  286Kb/8P | Micropower SOT, 50 mA Low-Noise Ultra Low-Dropout Regulator Designed for Use with Very Low ESR Output Capacitors |
| LP2978AIM5X-3.8 |  102Kb/7P | Micropower SOT, 50 mA Low-Noise Ultra Low-Dropout Regulator |
| LP2978AIM5X-3.8 |  286Kb/8P | Micropower SOT, 50 mA Low-Noise Ultra Low-Dropout Regulator Designed for Use with Very Low ESR Output Capacitors |
| LP2978IM5-3.8 |  102Kb/7P | Micropower SOT, 50 mA Low-Noise Ultra Low-Dropout Regulator |
| LP2978IM5-3.8 |  286Kb/8P | Micropower SOT, 50 mA Low-Noise Ultra Low-Dropout Regulator Designed for Use with Very Low ESR Output Capacitors |
| LP2978IM5X-3.8 |  102Kb/7P | Micropower SOT, 50 mA Low-Noise Ultra Low-Dropout Regulator |
| LP2978IM5X-3.8 |  286Kb/8P | Micropower SOT, 50 mA Low-Noise Ultra Low-Dropout Regulator Designed for Use with Very Low ESR Output Capacitors |
| LP2978 |  286Kb/8P | Micropower SOT, 50 mA Low-Noise Ultra Low-Dropout Regulator Designed for Use with Very Low ESR Output Capacitors |