Power Supply Selector Switch IC for SD Cards - BD2204GUL

BD2204GUL is high side switch IC that has built-in 2circuits of MOSFET. Switch has achieved 120mO(Typ.) on-resistance. 3.3V power supply and 1.8Vpower supply for memory card can be selected by SELterminal. Moreover, it has built-in simultaneous-onprevention function at power switching, reverse-currentprotection function to prevent reverse-current fromoutput terminal to input terminal at power-off, anddischarge circuit to discharge electricity in outputterminal.

* This product is a STANDARD grade product and not recommend for on-vehicle devices.
Part Number
Unit Quantity
Minimum Package Quantity
Packing Type
BD2204GUL-E2 Active VCSP50L1 3000 3000 Taping Yes
Supply Voltage(Min.)[V] 2.4
Supply Voltage(Max.)[V] 4.5
Current consumption(Typ.)[µA] 25.0
ON Resistance [mΩ] 120
Channel Number [ch] 2
Control Input Logic Active High
Output Current[A] 0.5
Output Turn on Time [ms] 0.06
Thermal Shut Down Recovery
Discharge resistance[Ω] 80
Operating Temperature (Min.)[°C] -40
Operating Temperature (Max.)[°C] 85
  • ・ Dual channel of low on resistance (Typ. = 120mΩ) N-channel MOSFET built in
    ・ 3.3V and 1.8V are chosen and an output is possible.
    ・ 0.5A Continuous Current load
    ・ Reverse-current protection when power switch off
    ・ Prevent VIN1 and VIN2 from simultaneous-on.
    ・ Output Discharge Circuit
    ・ Thermal Shutdown
    ・ Active-High Control Logic
    ・ VCSP50L1 package
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Technical Data
Thermal Resistance

The definition and how to use thermal resistance and thermal characterization parameter of packages for ROHM’s integrated circuit are described in this application note.