Ultralow noise CMOS linear regulator supplies up to 150 mA from a 2.2 V to 5.5 V input. Fixed output-voltage versions support low-voltage rails with low dropout and approximately 9 µV rms output noise. The regulator uses an enable input for shutdown and is stable with small 1 µF ceramic capacitors. Protection features include current-limit and thermal-overload protection for portable and noise-sensitive applications.
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| Regulator Type | Low dropout linear regulator |
| Output Current | 150mA |
| Input Voltage Range | 2.2 to 5.5V |
| Output Voltage Type | Fixed |
| Output Noise | 9µV rms |
| Dropout Voltage | 105 typical at 150 mAmV |
| Output Voltage Accuracy | ±1% |
| Quiescent Current | 10 typicalµA |
| Shutdown Current | Less than 1µA |
| Power Supply Rejection Ratio | 70 typical at 10 kHzdB |
| Minimum Input Capacitor | 1µF |
| Minimum Output Capacitor | 1µF |
| Enable Input | Yes |
| Operating Junction Temperature Range | -40 to 125°C |
| Protection Features | Current-limit and thermal-overload protection |
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