RP173x Series

11V Input 150mA LDO

Data Sheet / Flyer
Data Sheet * Flyer

The RP173x Series are CMOS-based voltage regulator ICs featuring 150 mA output and low supply current of Typ.2.0μA. Each of these ICs consists of a voltage reference unit, an error amplifier, a resistor-net for voltage setting, a current limit circuit, a chip enable circuit and a Reverse Current Protection Circuit. RP173x Series are suitable for the power source such as the equipment being in the standby-mode. A version with /CE input pin has reduced CE pull-up resistance to make its supply current ultra low.

The RP173x Series have Max.11V Input voltage and are applicable to the portable communication equipment that require the 2-cell Li-ion battery. Also they are applicable to the non-portable communication equipments. As this series includes Reverse Current Protection Circuit, there is little leakage current, if it's used as back-up circuit.

Since the packages for these ICs are the SOT-23-5 package, SC-88A, or DFN(PLP)1010-4 of 1mm square, high density mounting of the ICs on boards is possible.

Output Current Typ. 150mA
Supply Current Typ. 2.0µA
Standby Current Typ. 0.2µA
Input Voltage Range 2.5V to Set VOUT+6.5V (Max.11V)
Output Voltage Range 1.2V to 5.5V (0.1V steps)
(For other voltages, please refer to MARK INFORMATIONS.)
Dropout Voltage Typ. 0.13V ( IOUT=30mA, VOUT=3.0V)
Typ. 0.90V ( IOUT=150mA, VOUT=3.0V)
Output Voltage Accuracy ±1.0%(1.5V < VOUT ≤ 5.5V, Topt=25°C)
Temperature-drift Coefficient of Output Voltage Typ. ±100ppm/°C
Line Regulation Typ. 0.02%/V
Packages DFN(PLP)1010-4, SC-88A, SOT-23-5
Built-in Reverse Current Protection Circuit  
Short Current Limit Typ. 45mA
Built-in Peak Current Limit Circuit  
Output capacitors 0.1µF or more
  • Power source for portable communication equipments.
  • Power source for battery-powerd equipments.
  • Power source for electrical appliances such as cameras, VSRs and camcorders.
  • Power source for digital home appliances.
Data Sheet Flyer Package Info. Mark Info. Quality
Assurance Data
RP173x Series RP173x Series DFN(PLP)1010-4 RP173K Reliability
SC-88A RP173Q Reliability
RP173N Reliability

All PDF files are less than 1MB unless otherwise stated.

  • Buy Products / Order Sample


Ricoh semiconductor products are available at those dealers.


Page Top