RP111 Series
Low Voltage Good Load Transient Response 500mA LDO Regulator

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  • Description

    The RP111 Series are CMOS-based LDO regulators featuring 500mA output current. The minimum input voltage is as low as 1.4V and the output voltage can be set from 0.7V. Due to a built-in 0.46Ω (at VSET=2.8V) on-resistor, RP111 can provide a low dropout voltage. RP111 also features a ripple rejection at 75dB and low noise. The output voltage accuracy is as high as ±0.8%. The accuracy of output voltage of RP111 including the temperature characteristics and the load transient response has been improved.

    The Typ. and Max. value of under/overshoot accordnig to the various output current are shown in the typical characteristics in the datasheet, therefore the accuracy of the output voltage estimation will be easy on the actual operating cases. In addition to a fold-back protection circuit built into conventional regulators, RP111 contains a thermal shutdown circuit and an inrush current limit circuit. RP111 is offered in 5-pin SOT-23-5 and 5-pin SOT-89-5 packages. It is also offered in a 6-pin DFN1212-6 package, 1.2 mm x 1.2 mm, for consumer and industrial applications and a 6-pin HSOP-6J 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 (125°C) -40°C to 105°C (150°C)
    Supply Current Typ. 80 µA
    Standby Current Typ. 0.1 µA
    Output Voltage Range 0.7 V to 3.6 V (0.1 V step) Internally Fixed Ver.: 0.7 V, 1.2 V, 1.5 V, 1.8 V, 2.5 V, 2.7 V, 2.8 V, 3.0 V, 3.3 V, 3.4 V
    Externally Adjustable Ver.: 0.7 V to 3.6 V with external resistors
    Internally Fixed Ver.: 0.7 V, 1.1 V, 1.2 V, 1.5 V, 1.8 V, 2.5 V, 2.8 V, 2.85 V, 2.9 V, 3.0 V, 3.3 V, 3.4 V
    Externally Adjustable Ver.: 0.7 V to 3.6 V with external resistors
    Output Voltage Accuracy ±0.8% (Ta = 25°C, VSET ≥ 1.8 V)
    Output Voltage Temperature Coefficient Typ. ±30 ppm/°C (VSET ≥ 1.8 V)
    Dropout Voltage Typ. 0.23 V (IOUT = 500 mA, VSET = 2.5 V)
    Line Regulation Typ. 0.02%/V
    Output Current 500 mA
    Ripple Rejection Typ. 75 dB (f = 1 kHz)
    Typ. 70 dB (f = 10 kHz)
    Package DFN1212-6, SOT-23-5, SOT-89-5 DFN1212-6, SOT-23-5, SOT-89-5 SOT-23-5, SOT-89-5, HSOP-6J
    入力過渡応答 Typ. ±1.5 mV (VIN: VSET + 0.5 V ⇔ VSET + 1.5 V (tr = tf = 5.0 µs), VIN ≥ 1.4 V, IOUT = 30 mA)

    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.

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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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