RP112x Series

Low Noise 150mA LDO REGULATOR

Data Sheet / Flyer
Data Sheet * Flyer

The RP112x Series are CMOS-based voltage regulator (LDO) ICs, which have been developed using the CMOS process technology, with high output voltage accuracy, low-supply current, low On-resistance transistor, low noise output voltage and high ripple rejection. Each of the ICs is composed of the followings: a voltage reference unit, an error amplifier, a resistor-net for output voltage setting, a current limit circuit, and a chip enable circuit.

The RP112x features ultra low noise and its Ripple Rejection is as low as 80dB at f=1kHz, 75dB at f=10kHz and 65dB at f=100kHz. The Output Noise is also as low as Typ. 10μVrms. It is kept the low level at any Output Voltage. RP112x is suitable for the power source for the portable music player and RF module that demands for higher level of noise reduction. SOT-23-5 and SC-88A packages, a 1mm square DFN(PLP)1010-4 package are available.

Supply Current Typ. 75µA
Standby Current Typ. 0.1µA
Dropout Voltage Typ. 0.20V (IOUT=150mA, VOUT=2.8V)
Ripple Rejection Typ. 80dB (f=1kHz)
Typ. 75dB (f=10kHz)
Typ. 65dB (f=100kHz)
Output Voltage Accuracy ±1.0%
Output Voltage Temperature Coefficient Typ. ±30ppm/°C
Line Regulation Typ. 0.02%/V
Packages DFN(PLP)1010-4, SC-88A, SOT-23-5
Input Voltage Range 2.0V to 5.25V
Output Voltage Range 1.2V to 4.8V (0.1V steps)
(For other voltages, please refer to MARK INFORMATIONS.)
Short Current Limit Typ. 40mA
Built-in Fold Back Protection Circuit  
Output Noise Typ. 10µVrms
Ceramic capacitors are recommended to be used with this IC 1.0µF or more
  • Power source for portable communication equipment.
  • Power source for electrical appliances such as cameras,VCRs and camcorders.
  • Power source for battery-powered equipments.
  • Power source for electrical home appliances.
  • Power source for the portable music player
  • Power source for RF module

Data Sheet Flyer Package Info. Mark Info. Quality Assurance Data
RP112x Series RP112x Series DFN(PLP)1010-4 RP112K Reliability
SC-88A RP112Q Reliability
SOT-23-5
RP112N Reliability

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