A positive adjustable low-dropout linear regulator supplies up to 500 mA with a wide 1.8 V to 20 V input range and 0 V to 15 V output range. Ultralow noise architecture provides 0.8 µV RMS output noise from 10 Hz to 100 kHz and 76 dB PSRR at 1 MHz. Typical dropout voltage is 260 mV at full load, and quiescent current is nominally 2.2 mA with shutdown current below 1 µA. The regulator supports paralleling for lower noise or higher current and includes programmable current limit, power-good capability, reverse-current protection, reverse-battery protection, foldback current limit, and thermal limiting. Thermally enhanced 12-lead MSOP and 10-lead 3 mm by 3 mm DFN packages are available.
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| Regulator Type | Positive adjustable low-dropout linear regulator |
| Maximum Output Current | 500mA |
| Input Voltage Range | 1.8 to 20V |
| Output Voltage Range | 0 to 15V |
| Typical Dropout Voltage | 260mV |
| RMS Output Noise | 0.8µV RMS |
| RMS Noise Bandwidth | 10 to 100000Hz |
| Spot Noise | 2 at 10 kHznV/√Hz |
| PSRR at 1 MHz | 76dB |
| Quiescent Current | 2.2 typicalmA |
| Shutdown Current | <1µA |
| SET Pin Current | 100 ±1% initial accuracyµA |
| Bandwidth | 1MHz |
| Minimum Output Capacitor | 10 ceramicµF |
| Protection Features | Reverse-battery, reverse-current, foldback current limit, thermal limit with hysteresis |
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