View rn5rzxxx rh5rzxxc datasheet:

LOW DROPOUT AND LOW NOISE VOLTAGE REGULATOR NO. EA-039-091028 Rx5RZ SERIES OUTLINE The Rx5RZ Series are CMOS-based voltage regulator ICs with high output voltage accuracy, low supply current, low dropout voltage and high ripple rejection. Each of these voltage regulator ICs consists of a voltage reference unit, an error amplifier, output voltage setting resistors, a current limit circuit and a chip enable circuit. (Provided two types of chip enable circuit ; “H” active and “L” active, that can be selected when order.)for A/B version The output voltage of these ICs is fixed with high accuracy. In addition to low supply current from CMOS process, the Rx5RZ Series may lengthen battery life through low dropout voltage and chip enable function thanks to the built-in low ON