R8155 Series
Low Supply Current 36V Input 1A Voltage Regulator

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  • Description

    The R8155 Series are CMOS-based voltage regulators featuring 1A output current and 36V input voltage. In addition to a fold-back protection circuit, a thermal shutdown circuit, built into conventional regulators, the R8155 contains a constant slope circuit and an auto-discharge function. Besides the low supply current by CMOS, the operating temperature is -40°C to 125°C and the maximum input voltage is 36V, the R8155 series are very suitable for use in automotive applications.

  • Spec
    Input Voltage Range 3.5 V to 36.0 V (50.0 V)
    Operating Temperature Range -40°C to 125°C (150°C)
    Supply Current Typ. 18 µA
    Standby Current Typ. 0.1 µA
    Output Voltage Range Internally Fixed Ver.: 2.5 V, 2.8 V, 3.0 V, 3.3 V, 3.4 V, 5.0 V, 6.0 V, 8.0 V, 8.5 V, 9.0 V
    Externally Adjustable Ver.: 2.5 V to 12.0 V(Feedback Voltage: 2.5 V)
    Output Voltage Accuracy ±0.8% (VOUT ≤ 5.0 V, Ta = 25°C)
    ±1.8% (VOUT ≤ 5.0 V, -40°C ≤ Ta ≤ 125°C)
    Dropout Voltage Typ. 0.7 V (IOUT = 1 A, VOUT = 5.0 V)
    Line Regulation Typ. 0.01%/V
    Output Current 1 A
    Package HSOP-6J, TO-252-5-P2

    Protections / Functions

    TSD Reverse Current Limit ISC Inrush Constant Slope ECO mode Auto Discharge External Driver
  • Technical
    • R8155xxxxB/D Typical Application

      R8155xxxxB/D Typical Application

      C1=Ceramic 0.1µF
      C2=Ceramic 0.1µF

    • R8155J001C Typical Application

      R8155J001C Typical Application

      C1=Ceramic 0.1µF
      C2=Ceramic 0.1µF

    • R8155Jxx1E/F Typical Application

      R8155Jxx1E/F Typical Application

      C1=Ceramic 0.1µF
      C2=Ceramic 0.1µF

  • 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