R1124N Series

Data Sheet / Flyer
Data Sheet * Flyer

LOW NOISE 150mA LDO REGULATOR

The R1124N Series are CMOS-based voltage regulator ICs with high output voltage accuracy, extremely low supply current, low ON-resistance, and high ripple rejection. Each of these ICs consists of a voltage reference unit, an error amplifier, resistor-net for voltage setting, a current limit circuit, and a chip enable circuit.

These ICs perform with low dropout voltage and a chip enable function. The line transient response and load transient response of the R1124N Series are excellent, thus these ICs are very suitable for the power supply for hand-held communication equipment.

The output voltage of these ICs is fixed with high accuracy. Since the package for these ICs is SOT-23-5, high density mounting of the ICs on boards is possible.

Supply Current Typ. 75µA
Standby Mode Typ. 0.1µA
Dropout Voltage Typ. 0.22V (IOUT=150mA 3.0V Output type)
Ripple Rejection Typ. 70dB (f=1kHz 3.0V Output type)
Typ. 60dB (f=10kHz)
Temperature-Drift Coefficient of Output Voltage Typ.±100ppm/°C
Line Regulation Typ. 0.02%/V
Output Voltage Accuracy ±2.0%
Output Voltage Range 1.5V to 4.0V (0.1V steps)
(For other voltages, please refer to MARK INFORMATIONS.)
Package SOT-23-5
Built-in Fold Back Protection Circuit Typ. 40mA (Current at short mode)
Ceramic capacitors are
recommended to be used with this IC		 CIN=COUT=1μF (VOUT<2.5V)
CIN=1μF, COUT=0.47μF (VOUT => 2.5V)
  • ・Power source for portable communication equipment.
  • ・Power source for electrical appliances such as cameras, VCRs and camcorders.
  • ・Power source for battery-powered equipment.
Data Sheet Flyer Package Info. Mark Info. Quality Assurance Data
R1124N Series R1114x/
R1124N Series		 SOT-23-5 R1124N Reliability

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