RP131 Series
Low Voltage 1A LDO Regulator
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Description
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.
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Spec
Consumer 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(PL)1820-6, SOT-89-5, HSOP-6J, TO-252-5-P2 Protections / Functions
TSD Reverse Current Limit ISC Inrush Constant Slope ECO mode Auto Discharge External Driver 
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Technical
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SPICE model download
You can download the product's SPICE model. Login/registration to myNISD is required to download.
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RP131x331x Dropout Voltage vs. Output Current
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Quality &
PackagesProduct Name Compatibility Package Marking Reliability RP131Kxx1x-TR DFN(PL)1820-6 See datasheet RP131K RP131Hxx1x-T1-FE SOT-89-5 See datasheet RP131H-FE RP131Sxx1x-E2-FE HSOP-6J See datasheet RP131S-FE RP131Jxx1x-T1-FE TO-252-5-P2 See datasheet RP131J-FE - Refer to the datasheets for the details on the product.
- The package file or the datasheet includes package dimensions, taping specifications, taping reels dimensions, power dissipations, and recommended land pattern.
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Download Datasheet
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 |