RP109 Series
Low Voltage 150mA LDO Regulator

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  • Description

    The RP109 Series are CMOS-based LDO regulators featuring 150mA output. The input voltage (VIN) is as low as Min. 1.4V and the output voltage can be set from 0.8V. RP109 Series features an excellent line transient response, ripple rejection at 75dB, and low noise. The output voltage accuracy has been improved to ± 1% and the temperature drift coefficient of the output voltage is as low as ± 30ppm/°C. In addition to SOT-23-5, SC-88A and DFN1010-4 packages, a 0.8mm square ultra compact DFN(PL)0808-4 package is also available. RP109 Series contributes to the downsizing of the hand-held equipment because it can use the 0.1µF ceramic capacitor.

  • Spec
    Input Voltage Range 1.4 V to 5.25 V (6.0 V)
    Operating Temperature Range -40°C to 85°C (125°C)
    Supply Current Typ. 50 µA
    Standby Current Typ. 0.1 µA
    Output Voltage Range 0.8 V to 3.6 V (0.1 V step)
    Output Voltage Accuracy ±1.0% (Ta = 25°C)
    Output Voltage Temperature Coefficient Typ. ±100 ppm/°C (VOUT < 1.8 V)
    Typ. ±30 ppm/°C (VOUT ≥ 1.8 V)
    Dropout Voltage Typ. 0.25 V (IOUT = 150 mA, VOUT = 2.5 V)
    Line Regulation Typ. 0.02%/V
    Output Current 150 mA
    Ripple Rejection Typ. 75 dB (f=1 kHz, VOUT = 2.5 V)
    Package DFN(PL)0808-4, DFN1010-4, SC-88A, SOT-23-5

    Protections / Functions

    TSD Reverse Current Limit ISC Inrush Constant Slope ECO mode Auto Discharge External Driver
  • Technical
    • RP109x25xx Dropout Voltage vs. Output Current

      RP109x25xx Dropout Voltage vs. Output Current

  • 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 Auto Discharge