The R1111N Series are voltage regulator ICs with high output voltage accuracy, extremely low supply current, low ON resistance, and high Ripple Rejection by CMOS process. Each of these voltage regulator ICs consists of a voltage reference unit, an error amplifier, resistors, a current limit circuit, and a chip enable circuit.

FEATURES
Ultra-Low Supply Current.........................................TYP. 35µA
Standby Mode ...........................................................TYP. 0.1µA
Low Dropout Voltage ................................................TYP. 0.2V(IOUT=100mA)
High Ripple Rejection ...............................................TYP. 70dB(f=1kHz)
Low Temperature-Drift Coefficient of
Output Voltage...........................................................TYP. ±100ppm/°C
Excellent Line Regulation .........................................TYP. 0.05%/V
High Output Voltage Accuracy..................................±2.0%
Excellent Line Transient Response and Load Transient Response
Small Package  ..........................................................SOT-23-5(Mini-mold)
Output Voltage...........................................................Stepwise setting with a step of 0.1V in the range of
                                                         1.5V to 5.0V is possible
Built-in chip enable circuit ( 2 types; A: “L” active , B: “H” active)
Pinout ........................................................................Similar to the LP2980