RP154x Series

300mA SMALL DUAL LDO REGULATOR

Data Sheet / Flyer
Data Sheet * Flyer

The RP154x Series are CMOS-based voltage regulator ICs that provide high ripple rejection, low dropout voltage, high output voltage accuracy, and low supply current. The RP154x Series consist of a voltage reference unit, an error amplifier, resistors for setting output voltage, a short current limit circuit, and a chip enable circuit.

The RP154x Series are available in fixed output voltage options. Besides the low supply current by CMOS, the RP154x Series present a low dropout voltage by built-in low ON resistance Tr. and an extended battery life by a chip enable function. Compared with the existing CMOS-based regulator ICs, the RP154x Series are further improved in ripple rejection, line transient response, and load transient response. All these features allow the RP154x Series to become ideal power sources for hand-held communication equipments.

The RP154x Series are available in two types of packages: SOT-23-6 and DFN1216-8 package with 2 LDOs on board that achieves high-density mounting.

Supply Current  Typ. 50μA×2 (VR1&VR2) 
Standby Current  Typ. 0.1μA×2 (VR1&VR2) 
Input Voltage Range 1.4V to 5.25V 
Output Voltage Range 0.8V to 3.7V (0.1V steps)
(For details, please refer to Data Sheet)
Output Voltage Accuracy ±1.0% (VSET>2.0V, Topt=25°C) 
Temperature-Drift Coefficient of Output Voltage  Typ. ±80ppm/°C 

Dropout Voltage

Typ. 0.25V (IOUT=300mA, VSET=2.5V)
Ripple Rejection  Typ. 75dB (f=1kHz) 
Line Regulation  Typ. 0.02%/V 
Packages  DFN1216-8, SOT-23-6 
Built-in Fold Back Protection Circuit Typ. 60mA (Current at short mode) 
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 equipment.

Data Sheet Flyer Package Info. Mark Info. Quality
Assurance Data
RP154x Series RP154x Series DFN1216-8 RP154L Reliability
SOT-23-6 RP154N Reliability

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