RP115 Series
Low Voltage 500mA/1A LDO Regulator

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  • Description

    The RP115 Series are CMOS-based LDO regulators featuring 500mA/1A output.

    In the RP115L (DFN1216-8, DFN2020-8B), there are two preset inrush current limit and guaranteed maximum output current values and alternative by the logic of LCON pin.

    When LCON pin is set "H", the maximum IOUT=1A and IRUSH=500mA, while LCON pin is set "L", the maximum IOUT=500mA and IRUSH=300mA. (As for the RP115H (SOT-89-5), the preset inrush current limit and output current value is fixed at the maximum IOUT=1A and IRUSH=500mA.)

    By this function, for example, in case the RP115L is turned on with setting LCON at "L" (the preset IRUSH=300mA) and after the start up sequence, by making LCON pin at "H" (IOUT=1A), then inrush current can be suppressed less only at start-up.

    RP115 supports low voltage, featuring input voltage from 1.4V and output voltage from 0.7V. Due to a built-in Nch. transistor with low on-resistance, RP115 provides a low dropout voltage. Ripple rejection is 75dB and noise is low.

    In addition to a fold-back protection circuit built into conventional regulators, RP115 contains a thermal shutdown circuit, an inrush current limit circuit, a constant slope circuit, and a reverse protection circuit.

    In addition to SOT-89-5, RP115 is offered in a 1.6mm×1.2mm square DFN1216-8 package for consumer and industrial applications and a DFN2020-8B package for automotive application.

  • Spec
    Consumer Industrial Automotive
    Input Voltage Range 1.4 V to 5.25 V (6.0 V)
    Operating Temperature Range -40°C to 85°C (125°C) -40°C to 105°C (150°C) -40°C to 105°C (150°C)
    Supply Current Typ. 110 µA
    Standby Current Typ. 0.5 µA
    Output Voltage Range 0.7 V to 4.3 V (0.1 V step) 0.9 V, 1.0 V, 1.1 V, 1.2 V, 1.35 V, 1.5 V, 1.75 V, 1.8 V, 2.5 V, 2.8 V, 3.0 V, 3.3 V, 3.4 V 0.9 V, 1.0 V, 1.1 V, 1.2 V, 1.25 V, 1.35 V, 1.5 V, 1.75 V, 1.8 V, 2.5 V, 2.8 V, 3.0 V, 3.3 V, 3.4 V, 3.9 V
    Output Voltage Accuracy ±1.0% (Ta = 25℃, VSET ≥ 1.75V)
    Output Voltage Temperature Coefficient Typ. ±30 ppm/°C (VSET ≥ 1.75 V) Typ. ±30 ppm/°C (VSET ≥ 1.75 V)
    Typ. ±100 ppm/°C (VSET < 1.75 V)
    Typ. ±30 ppm/°C (VSET ≥ 1.75 V)
    Typ. ±100 ppm/°C (VSET < 1.75 V)
    Dropout Voltage Typ. 0.195 V (RP115L: IOUT = 1.0 A, VSET = 1.2 V)
    Typ. 0.235 V (RP115H: IOUT = 1.0 A, VSET = 1.2 V)
    Ripple Rejection Typ. 80 dB (f = 1 kHz, VSET ≤ 1.8 V)
    Typ. 75 dB (f = 1 kHz, VSET > 1.8 V)
    Package DFN1216-8, SOT-89-5 DFN1216-8, SOT-89-5 DFN2020-8B, SOT-89-5

    Protections / Functions

    TSD Reverse Current Limit ISC Inrush Constant Slope ECO mode Auto Discharge External Driver
  • Technical
  • Quality &
    • 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.

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

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Category:LDO Linear Regulators

min (V)
max (V)
min (V)
max (V)
Functions Constant Slope,Auto Discharge