Load Switch with Low On-Resistance

The XC8102 series is a low ON resistance load switch IC with ON/OFF control and output current protection which integrates a P-channel MOSFET.

By connecting the XC8102 to the output pin of a step-down DC/DC converter, the CE pin controls ON/OFF for each distribution switch to deliver power per requirements and maximize total power efficiency. As a result, the XC8102 helps to extend battery life and product operation time.

The series contains a current limit and protection circuit so these are not required externally unlike discrete circuit solutions where MOSFETs and resistors are used.

When a low signal is input to the CE pin, the series enters stand-by mode. Even where a load capacitor is connected to the output pin during stand-by, the electric charge stored at the load capacitor is discharged through the internal switch. As a result, the VOUT pin voltage falls quickly to the VSS level.

The series contains over current protection with fold-back current circuitry which operates as over current protection and short circuit protection for the output pin.


On Resistance 0.28Ω@VIN=6.0V(TYP.)
Input Voltage Range 1.2~6.0V
Quiescent Current 3.0μA@VIN=1.2V,3.6μA@VIN=2.9V,4.0μA@VIN=6.0V
Stand-by Current 0.1μA
Protection Circuits Current limit(Output Current)480mA(TYP.)(1.8≦VIN≦6.0V)
Short Circuit Protection
Short current30mA(TYP.)
ON/OFF Function High Active Enable
Operating Ambient Temperature -40℃~+85℃

Typical Application Circuit


Package Number of Pins Pcs/Reel Package Size(mm)
SOT-25 5 3,000 2.8 x 2.9 x 1.3
SSOT-24 4 3,000 2.0 x 2.1 x 1.1
USP-4 4 3,000 1.2 x 1.6 x 0.6
USP-6B06 6 5,000 1.5 x 1.8 x 0.33
USPN-4 4 5,000 0.9 x 1.2 x 0.4

XC8102 Series Part Numbers

Part number Sample CE Pin Logic CL Discharge Function Packages EDA Online Store
XC8102AA017R-G CE Active High Available USPN-4
XC8102AA018R-G CE Active High Available USP-6B06
XC8102AA01GR-G CE Active High Available USP-4
XC8102AA01MR-G CE Active High Available SOT-25
XC8102AA01NR-G CE Active High Available SSOT-24

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