RP124 Series
Low Supply Current 100mA LDO Regulator with Battery Monitor

Download Datasheet

  • Description

    The RP124 is an LDO regulator with a battery monitor (BM) featuring ultra-low supply current.

    The battery monitor has a function which divides the input voltage (VIN) into 1/3 or 1/4. The battery charge remaining can be monitored by MCU. The buffering output enables directly inputting a signal into the low voltage A/D converter (ADC) with built-in MCU.

    Key Benefits

    • Achieving Low Supply Current of 0.3 µA, Longer Battery Life and Downsizing
    • Requiring Only Three External Capacitors and Suitable for Space-saving Mounting for the Smaller Packages

  • Spec
    Input Voltage Range 1.7 V to 5.5 V (6.5 V)
    Operating Temperature Range -40°C to 85°C (125°C)
    Supply Current Typ. 0.3 µA (LDO Section)
    Output Voltage Range 1.2 V, 1.5 V, 1.8 V, 2.1 V, 2.2 V, 2.3 V, 2.4 V, 2.5 V, 2.7 V, 2.8 V, 3.0 V, 3.1 V, 3.3 V, 3.6 V
    Output Voltage Accuracy ±0.8% (Ta = 25°C)
    Output Current 100 mA
    Package DFN1212-6, SOT-23-5
    BM Output Voltage VIN/3 (RP124xxx3x)
    VIN/4 (RP124xxx4x)
    BM Output Voltage Accuracy ±20 mV
    BM Output Current Typ. 0.1 µA

    Protections / Functions

    TSD Reverse Current Limit ISC Inrush Constant Slope ECO mode Auto Discharge External Driver
  • Technical
    • RP124xxxxE Typical Application

      RP124xxxxE Typical Application

    • LDO Supply Current vs. Temperature, RP124x18xx, VIN = 2.8 V

      LDO Supply Current vs. Temperature, RP124x18xx, VIN = 2.8 V

      CIN = Ceramic 1.0 µF, COUT = Ceramic 1.0 µF

    • BM Supply Current vs. Temperature, RP124xxx4x, VIN = 3.6 V

      BM Supply Current vs. Temperature, RP124xxx4x, VIN = 3.6 V

      CIN = Ceramic 1.0 µF, CBM = Ceramic 0.1 µF

  • 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

Search for similar products under conditions below.

Category:LDO Linear Regulators

min (V)
max (V)
min (V)
max (V)
Functions ECO mode,Auto Discharge