View s1333xxx-series datasheet:

S-1333 Series www.ablic.com 5.5 V INPUT, 300 mA VOLTAGE REGULATOR © ABLIC Inc., 2011-2019 Rev.2.4_00 The S-1333 Series, developed by using the CMOS technology, is a positive voltage regulator IC which has low current consumption, high ripple-rejection and low dropout voltage. Even with low current consumption of 25 µA typ., it has high ripple-rejection of 75 dB typ., and a ceramic capacitor of 1.0 µF or more can be used as the input and output capacitors. It also has high-accuracy output voltage of ±1.0%.  Features • Output voltage: 1.0 V to 3.5 V, selectable in 0.05 V step • Input voltage: 1.5 V to 5.5 V • Output voltage accuracy: ±1.0% (1.0 V to 1.45 V output product: ±15 mV) • Dropout voltage: 160 mV typ. (2.8 V output product, I = 100 mA) OU