85mΩ High Function Power Switch with Current Limit Adjustable Pin

The XC8108 series is a P-channel MOSFET power switch IC with a low ON resistance.

A current limit, reverse current prevention (prevents reverse current from VOUT to VIN), soft start, thermal shutdown, and an under voltage lockout (UVLO) are incorporated as protective functions.

A flag function monitors the power switch status. The flag output has N-channel open drain structure, and outputs Low level signal while over-current or overheating is detected, or while the reverse current prevention is operated.

A variable current limiting function is integrated, allowing the current limit value to be set within the range of 0.9A to 2.4A (TYP.) using an external resistor. The IC can be put in the stand-by state using the level of the voltage applied to the CE pin. CE pin logic is available in two types, active high or active low.


Input Voltage Range2.5V~5.5V
MaximumOutput Current2A
On Resistance85mΩ@VIN=5.0V(TYP.)
Quiescent Current40μA@VIN=5.0V
Stand-by Current0.1μA(TYP.)
Flag Delay Time7.5ms(TYP.)*Current LimitDetect
4ms(TYP.)*Reverse voltage detection
Protection CircuitsCurrent Limit0.9A~2.4A(TYP.)
Reverse Current Prevention
Thermal Shutdown
Under Voltage Lockout(UVLO)
FunctionsFlag Output
CE Pin Input Logic Selectable
Current Limit Response Time2μs(TYP.)
Operating Ambient Temperature-40℃~+105℃
Environmentally FriendlyEU RoHS compliant, Pb free

Typical Application Circuit

Quality Reports

Technical Document


Package Number of Pins Pcs/Reel Package Size(mm)
USP-6C 6 3,000 1.8 x 2.0 x 0.6

XC8108 Series Part Numbers

Part number Sample CE Pin Logic Protection Circuits Type Maximum Output Current Packages EDA Online Store
XC8108AC20ER-G ActiveHigh Without Latch Protection 2.0A USP-6C
XC8108AD20ER-G ActiveHigh With Latch Protection 2.0A USP-6C
XC8108BC20ER-G ActiveLow Without Latch Protection 2.0A USP-6C
XC8108BD20ER-G ActiveLow With Latch Protection 2.0A USP-6C

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