R5326 Series
Low Voltage Automatic ECO Mode Shift Dual 150mA Voltage Regulator

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  • Description

    The R5326 Series are CMOS-based auto mode switching dual LDO regulators featuring 150mA output. In auto switching mode, the operation can switch automatically to a fast response mode or a low power mode of the ECO function according to output current. (Automatic switching to fast response mode under IOUT > 3mA conditions or to low power mode under IOUT < 0.6mA conditions.)

    In low power mode, supply current is as low as 5.5µA. In fast response mode, ripple rejection is 70dB and noise is low. R5326 requires neither ECO pin for switching mode nor microcontroller pin. R5326 supports low voltage, featuring input voltage from 1.4V and output voltage from 0.8V. Standby mode and auto-discharge function are also available.

  • Spec
    Input Voltage Range 1.4 V to 6.0 V (6.5 V)
    Operating Temperature Range -40°C to 85°C (125°C)
    Supply Current Low Power Mode: Typ. 5.5 µA × 2 (VR1 & VR2) (IOUT = 0 mA)
    Fast Transient Mode: Typ. 50 µA × 2 (VR1 & VR2) (IOUT = 10 mA)
    Standby Current Typ. 0.1 µA (VR1 & VR2)
    Output Voltage Range 0.8 V to 4.2 V (0.1 V step)
    Output Voltage Accuracy ±1.0% (Ta = 25°C, VOUT > 1.5 V)
    Output Voltage Temperature Coefficient Typ. ±100 ppm/°C
    Dropout Voltage Typ. 0.19 V (IOUT = 150 mA, VOUT = 2.8 V)
    Line Regulation Typ. 0.02%/V
    Output Current 150 mA
    Ripple Rejection Typ. 70 dB (f = 1 kHz)
    Typ. 60 dB (f = 10 kHz)
    Package DFN(PL)1820-6

    Protections / Functions

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

      Typical Application

      C1: 1.0 µF
      C2, C3: 1.0 µF to 3.3 µF

    • R5326K (VR1/VR2) Dropout Voltage vs. Output Current

      R5326K (VR1/VR2) 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.

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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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Category:LDO Linear Regulators

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