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RP131 Series

Low Voltage 1A LDO Regulator

  • Consumer
  • RoHS

The RP131 Series are CMOS-based LDO regulators featuring 1A output with low on-resistance. The CMOS process provides both large output current and low supply current. The dropout voltage is significantly lower than bipolar regulators.

The RP131 handles low voltage with an input voltage from 1.6V and an output voltage from 0.8V. Accordingly, the device supports highly integrated, low voltage-driven LSI as a rear stage of the DC/DC converter. The CE pin can switch the regulator into standby mode. In addition to a fold-back protection circuit built into conventional LDO regulators, RP131 has a thermal shutdown circuit and inrush current limit circuit.

Specs & Datasheets

Input Voltage Range 1.6 V to 6.5 V (7.0 V)
Operating Temperature Range -40°C to 85°C (125°C)
Supply Current Typ. 65 µA
Standby Current Typ. 0.15 µA
Output Voltage Range 0.8 V to 5.5 V (0.1 V step)
Output Voltage Accuracy ±1.0% (Ta = 25°C)
Output Voltage Temperature Coefficient Typ. ±100 ppm/°C
Dropout Voltage Typ. 0.5 V (VOUT = 2.8 V, IOUT = 1 A)
Line Regulation Typ. 0.05%/V
Load Regulation Typ. 20 mV (IOUT = 300 mA)
Typ. 80 mV (IOUT = 1 A)
Output Current Min. 1 A
Ripple Rejection Typ. 70 dB (f = 1 kHz, VOUT = 2.8 V)
Package DFN(PLP)1820-6, SOT-89-5, HSOP-6J, TO-252-5-P2

Download Datasheet

Protections / Functions

Functional Description

TSD Reverse Current Limit ISC Inrush Constant Slope ECO mode Auto Discharge External Driver

Technical Documents

RP131x331x Dropout Voltage vs. Output Current

RP131x331x Dropout Voltage vs. Output Current

Quality & Packages

Product Name Compatibility Package Marking Reliability
  • gradeConsumerC
DFN(PLP)1820-6 RP131K RP131K
  • gradeConsumerC
SOT-89-5 RP131H RP131H-FE
  • gradeConsumerC
  • gradeConsumerC
TO-252-5-P2 RP131J RP131J-FE

Refer to the datasheets for the details on the product.
The package file includes package dimensions, taping specifications, taping reels dimensions, power dissipations, and recommended land pattern.
Please contact us or our distributors for unpublished reliability information.

Sample / Buy

Functional Description

TSD Thermal Shutdown Function
Reverse Current Protection Reverse Current Protection
Current Limit Overcurrent Protection
ISC Short Current Protection
Inrush Current Limit Inrush Current Protection
Constant Slope Constant Slope Function
ECO mode ECO Function
Auto Discharge Auto Discharge Function
External Driver External Output Driver Transistor

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