RP131x Series

LOW ON RESISTANCE / LOW VOLTAGE 1A LDO

Data Sheet / Flyer
Data Sheet * Flyer

The RP131x Series are voltage-regulators with a built-in low ON-resistance transistor and output current is 1A capability. These ICs are capable of the low input voltage (Min.1.6V) and also the minimum output voltage can be set from 0.8V. (The output voltage is fixed in the IC.)

Each of these ICs consists of a voltage reference unit, an error amplifier, a resistor net for setting output voltage, a chip enable circuit, current limit circuits for over-current and short, and a thermal-shutdown circuit.

A standby mode with ultra low supply current can be realized with the chip enable function.

The packages for these ICs are DFN1616-6B and DFN(PLP)1820-6 which are suitable for high density mounting of the ICs on boards. SOT-89-5, HSOP-6J and TO-252-5-P2 with high power dissipation are also available.

Output Current Min. 1A
Supply Current Typ. 65µA
Standby Current Typ. 0.15µA
Input Voltage Range 1.6V to 6.5V
Output Voltage Range 0.8V to 5.5V (0.1V steps)
(For other voltages, please refer to MARK INFORMATIONS.)
Dropout Voltage Typ. 0.5V (VOUT=2.8V, IOUT=1A)
Ripple Rejection Typ. 70dB (f=1kHz, VOUT=2.8V)
Output Voltage Accuracy ±1.0%
Temperature-Drift Coefficient of Output Voltage Typ. ±100ppm/°C
Line Regulation Typ. 0.05%/V
Load Regulation Typ. 20mV at IOUT=300mA, Typ. 80mV at IOUT=1A
Packages DFN1616-6B, DFN(PLP)1820-6, SOT-89-5, HSOP-6J, TO-252-5-P2
Built-in Inrush current limit circuit Typ. 500mA
Built-in Fold-Back Protection Circuit Typ. 250mA (Current at short mode)
Built-in Thermal Shutdown Circuit Thermal Shutdown Temperature ; Typ. 165°C
Released Temperature ; Typ. 135°C
Built-in Auto Discharge Function D version
Ceramic capacitors are recommended to be used with this IC 2.2µF or more (VOUT<=3.6V)
4.7µF or more (VOUT>3.6V)
  • Power source for battery-powered equipment.
  • Power source for portable communication equipment.
  • Power source for electrical appliances such as cameras, VCRs and camcorders.
  • Power source for Notebook PC.
  • Power source for home appliances.

Data Sheet Flyer Package Info. Mark Info. Quality
Assurance Data
RP131x Series RP131x Series DFN1616-6B RP131L Reliability
DFN(PLP)1820-6 RP131K Reliability
SOT-89-5 RP131H Reliability
HSOP-6J RP131S Reliability
TO-252-5-P2 RP131J Reliability

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