RP132x Series

Low on Resistance / Low Voltage 1A LDO

Data Sheet / Flyer
Data Sheet * Flyer
(1.39 MB)    

The RP132x Series are voltage-regulators with a built-in low ON-resistance transistor and output current is 1A capability. These ICs have two versions: fixed output voltage type and externally adjustable output voltage type. The minimum output voltage can be set from 1.4V. Otherwise, the load regulation of RP132x has much improved when compared with conventional regulators. It's Typ.5mV at IOUT=0.1mA to 1A.

Each of these ICs consists of a voltage reference unit, an error amplifier, a resistor net for setting output voltage, current limit circuits to prevent over-current and a thermal-shutdown circuit. A standby mode with ultra low supply current can be realized with the chip enable function. Additionally, E/F Version with delay pin for inrush current limit time setting are also available.

The packages for these ICs are DFN(PLP)1820-6, SOT-89-5, HSOP-6J and TO-252-5-P2. DFN(PLP)1820-6 is suitable for high density mounting of the ICs on boards. SOT-89-5, HSOP-6J and TO-252-5-P2 are supporting high wattage.

Output Current Min. 1A
Supply Current Typ. 65µA
Standby Current Typ. 0.15µA
Input Voltage Range 1.4V to 6.5V
Output Voltage Range Fixed Output Voltage Type: 0.8V to 5.5V (0.1V steps)
Adjustable Output Voltage Type: 0.8V to 5.5V
(For other voltages, please refer to MARK INFORMATIONS.)
Dropout Voltage Typ. 0.52V (VOUT=2.8V, IOUT=1A)
Ripple Rejection Typ. 70dB (f=1kHz, VOUT=2.8V)
Output Voltage Accuracy ±1.0%
Output Voltage Temperature-Drift Coefficient Typ. ±60ppm/°C
Line Regulation Typ. 0.052%/V
Load Regulation Typ. 3mV at IOUT=300mA, Typ. 5mV at IOUT=1A
Packages DFN(PLP)1820-6, SOT-89-5, HSOP-6J, TO-252-5-P2
Inrush Current Limit Circuit Typ. 500mA
B/D version: Inrush current limit time is 500μs.
E/F version: Inrush current limit time is adjustable.
Fold-Back Protection Circuit Typ. 250mA (Current at short mode)
Thermal Shutdown Circuit Thermal Shutdown Temperature : Typ. 165°C
Released Temperature :Typ. 95°C
Auto Discharge Function D, F 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 home appliances and Notebook PC.

Data Sheet Flyer Package Info. Mark Info. Quality
Assurance Data
RP132x Series
(1.39 MB)
RP132x Series DFN(PLP)1820-6 RP132K Reliability
SOT-89-5 RP132H Reliability
HSOP-6J RP132S Reliability
TO-252-5-P2 RP132J Reliability

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