RP170x SeriesAEC-Q100 Compliant

300mA 10V Input LDO Regulator for Automotive Applications


Data Sheet

Data Sheet

The RP170x Series are LDO regulators featuring 300mA output current that are developed with CMOS process technology. Because of the 10V maximum input voltage, RP170x can be used in 2 cell lithium-ion battery powered portable appliances and besides a portable equipment. The supply current is Typ. 23µA though an excellent response characteristics.
The output voltage range from 1.2V is possible. The output voltage accuracy and temperature-drift coefficient of output voltage of the RP170x Series are excellent.
RP170x has a fold-back protection circuit and a thermal shutdown circuit. Moreover, a standby mode with ultra low supply current can be realized with the chip enable function.
SOT-23-5 and SOT-89-5 with high power dissipation packages are available.


Input Voltage Range (Maximum Rating) 2.6V to 10.0V (12V)
Operating Temperature −40°C to 105°C
Supply Current Typ. 23µA
Standby Mode Typ. 0.1µA
Dropout Voltage Typ. 0.20V (IOUT=100mA, VOUT=3.0V)
Typ. 0.77V (IOUT=300mA, VOUT=2.8V)
Ripple Rejection Typ. 70dB (f=1kHz)
Temperature-Drift Coefficient of Output Voltage Typ. ±80ppm/°C
Line Regulation Typ. 0.02%/V
Output Voltage Accuracy ±1.0%
SOT-23-5, SOT-89-5
Output Voltage Range 1.2V / 1.5V / 1.8V / 2.5V / 3.0V / 3.3V / 5.0V / 6.0V
*Contact Ricoh sales representatives for other voltages.
Built-in Fold Back Protection Circuit Typ. 40mA (Current at short mode)
Built-in Thermal Shutdown Circuit Shutdown Temperature at 165°C
Ceramic capacitors are recommended to be used with this IC 1.0µF or more


  • Power source for accessories such as car audios, car navigation systems, and ETC systems
  • Power source for ECUs such as EV inverter and battery charge control unit

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Data Sheet Package Quality Assurance Data Suffix Composition & Content*1
RP170x Series
SOT-23-5 Contact us*2 -JE Sn (Sn: 100%)
Reliability -AE
SOT-89-5 Contact us*2 -JE Sn (Sn: 100%)
Reliability -AE
  • *1The composition of the product cannot be specified.
  • *2The reliability information is not listed for devices above rank2. Please contact Ricoh sales representatives for further informations.

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