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RP131 Series
Low Voltage 1A Voltage Regulator (LDO Regulator)

Product Specifications

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.

FEATURES

Input Voltage Range (Absolute maximum rating) 1.6 V to 6.5 V (7.0 V)
Supply Current Typ. 65 µA
Standby Current Typ. 0.15 µA
Output Voltage Range 0.8V to 5.5V (0.1V steps)
Dropout Voltage Typ. 0.5 V (VOUT=2.8V, IOUT=1A)
Ripple Rejection Typ. 70 dB (f=1kHz, VOUT=2.8V)
Output Current Min. 1 A
Output Voltage Accuracy ±1.0%
Temperature-Drift Coefficient of Output Voltage Typ. ±100 ppm/°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. 500 mA
Built-in Fold-Back Protection Circuit Typ. 250 mA (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 2.2 µF or more (VOUT≤3.6V)
4.7 µF or more (VOUT>3.6V)

APPLICATION INFORMATION

C1 : 2.2μF or more
C2 : 2.2µF or more (VOUT≤3.6V), 4.7µF or more (VOUT>3.6V)

TYPICAL CHARACTERISTICS

RP131x331x Dropout Voltage vs. Output Current

PIN DESCRIPTION

DFN1616-6B1.6 mm × 1.6 mm

DFN1616-6B

1 VOUT**
2 VOUT**
3 GND
4 CE
5 VDD**
6 VDD**

*) The tab is substrate level (GND).
**) The VOUT pin and VDD pin must be wired each other when it is mounted on board.

DFN(PLP)1820-61.8 mm × 2.0 mm

DFN(PLP)1820-6

1 VOUT**
2 VOUT**
3 GND
4 CE
5 VDD**
6 VDD**

*) The tab is substrate level (GND).
**) The VOUT pin and VDD pin must be wired each other when it is mounted on board.

SOT-89-54.5 mm × 4.35 mm

SOT-89-5

1 NC
2 GND
3 CE
4 VDD
5 VOUT
HSOP-6J5.02 mm × 6.0 mm

HSOP-6J

1 VOUT
2 GND**
3 NC
4 CE
5 GND**
6 VDD

**) The GND pin must be wired each other when it is mounted on board.

TO-252-5-P26.6 mm × 9.9 mm

TO-252-5-P2

1 VOUT
2 GND**
3 GND**
4 CE
5 VDD

*) The tab is substrate level (GND).
**) The GND pin must be wired each other when it is mounted on board.


RP131 Series for Consumer

APPLICATIONS

  • 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

SELECTION GUIDE

The output voltage, auto discharge function, package for the ICs can be selected at the user’s request.

Product Name   Package Quantity per Reel
RP131Lxx1#-TR Consumter DFN1616-6B 5,000
RP131Kxx1#-TR Consumter DFN(PLP)1820-6 5,000
RP131Hxx1#-T1-FE Consumter SOT-89-5 1,000
RP131Sxx1#-E2-FE Consumter HSOP-6J 1,000
RP131Jxx1#-T1-FE Consumter TO-252-5-P2 3,000
  • xx … The output voltage can be designated in the range from 0.8V(08) to 5.5V(55) in 0.1V steps.
  • # … The auto discharge function at off state are options as follows.
    B: without auto discharge function at off state
    D: with auto discharge function at off state

DOCUMENT/CONTACT

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Technical Support

Package *1 Marking Reliability *2
DFN1616-6B RP131L RP131L
DFN(PLP)1820-6 RP131K RP131K
SOT-89-5 RP131H RP131H (-FE)
HSOP-6J RP131S RP131S (-FE)
TO-252-5-P2 RP131J RP131J (-FE)

*1: The package file includes package dimensions, taping specifications, taping reels dimensions, power dissipations, and land pattern (foot pattern).
*2: Reliability file includes a reliability test report and a reflow profile.

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