View pam3101-series datasheet:

PAM3101 300mA High PSRR Low Dropout CMOS Linear Regulator Features General Description The PAM3101 series of positive voltage linear Low Dropout Voltage: 180mV@300mA regulators feature low quiescent current (65μA (V =3.3V) O Typ.) and low dropout voltage, making them ideal Output Voltage Accuracy within ±2% for battery powered applications. Their high Quiescent Current:65μA Typ. PSRR make them useful in applications where High PSRR: 70dB@1kHz AC noise on the input power supply must be Excellent Line and Load Regulation suppressed. Space-saving SOT-23, SOT-89 and Fast Response SC70 packages are attractive for portable and Current Limiting handheld applications. They have both thermal Short Circuit Protection shutdown and current limit features to prevent