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R5520 Series
USB High-side Switch IC

Download Datasheet

  • Description

    The R5520 Series are CMOS-based USB high side switch IC. R5520 is a protection IC used in power line of USB with built-in current limit circuit, thermal shutdown circuit, and under-voltage lockout circuit (UVLO). R5520 contains an internal delay circuit to prevent output of flag signal of false detection caused by inrush current.

  • Spec
    Input Voltage Range 4.0 V to 5.5 V (6.0 V)
    Operating Temperature Range -40°C to 85°C (125°C)
    Supply Current Typ. 20 µA
    Standby Current Typ. 0.5 µA
    Output Current 500 mA
    ON-resistance 100 mΩ (VIN = 5 V, IOUT = 500 mA)
    Internal FET Pch
    Package SOT-89-5
    UVLO Detection Voltage Typ. 2.2 V
    Short Current Limit Typ. 750 mA (Min. 500 mA)
    FLAG Delay Time Typ. 10 ms

    Protections / Functions

    TSD Reverse OCP UVLO OVLO Soft Start PGOOD Auto Discharge Reset
  • Technical
    • Typical Application

      Typical Application

      *) FLG pin is Nch. open drain output.

    • R5520H001A Turn-on response

      R5520H001A Turn-on response

  • 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
OCP Overcurrent Protection
UVLO Undervoltage Lockout Protection
OVLO Overvoltage Lockout Protection
Soft Start Soft Start Function
PGOOD Power Good Output
Auto Discharge Auto Discharge Circuit

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Category:Switch ICs

Features USB SW
min (V)
max (V)
ON Resistance