XC8102 Series ETR2502-013 Load Switch with Low On-Resistance (Current Limit 400mA) GENERAL DESCRIPTION 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 V pin voltage falls quickly to the V level. OUT SS 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. FEATURES APPLICATIONS On Resistance : 0.28 VIN=6.0V (TYP.) Smart phones / Mobile phones 0.31 V =4.0V (TYP.) IN 0.35 VIN=2.9V (TYP.) Digital still cameras / Camcorders 0.52 V =1.8V (TYP.) IN 0.60 VIN=1.5V (TYP.) Portable game consoles 0.80 V =1.2V (TYP.) IN Input Voltage Range : 1.2V ~ 6.0V Power Consumption : 3.0A V =1.2V IN 3.6A VIN=2.9V 4.0A V =6.0V IN Stand-by Current : 0.1A Protection Circuit : Current limit(Output Current) 400mA (1.8V 6.0V) IN Short-circuit Protection, Short current= 30mA (TYP.) ON/OFF Function : Active High Enable High-Speed Discharge Function Operating Ambient Temperature : -40 ~ 85 Packages : USP-4,SSOT-24, SOT-25, USPN-4, USP-6B06 Environmentally Friendly : EU RoHS Compliant, Pb Free TYPICAL PERFORMANCE TYPICAL APPLICATION CIRCUIT CMOS CHARACTERISTICS DC/DC OUT 2.1V On Resistance vs. Input Voltage VIN VOUT VIN IN Highl VOUT CPU XC8102 Step Down CE XC8102AA01M/XC8102AA01G VSS ON/OFF DC/DC Li-ion CIN Control VIN=CE 3.6V CL IOUT=50mA XC9235 CIN=None,CL=None 1.0 VIN IN VOUT CPU XC8102 0.8 Ta=85 CE VSS ON/OFF 25 Control CIN -40 CL 0.6 0.4 VIN IN VOUT 0.2 XC8102 CPU CE VSS ON/OFF 0.0 Control CIN CL 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0 5.5 6.0 Input Voltage : VIN (V) 1/18 ON Resistance : RON () XC8102 Series BLOCK DIAGRAM VIN VOUT GATE Current CONTROL Limit Rdischg ON/OFF each CE Control circuit CE/ VSS XC8102AA Series XC8102AA * Diodes inside the circuit are an ESD protection diode and a parasitic diode. PRODUCT CLASSIFICATION Ordering Information ( ) *1 XC8102 - DESIGNATOR ITEM SYMBOL DESCRIPTION CE pin logic A CE High active C Discharge Function A C auto-discharge function L L Internal Standard Number 01 Fixed GR-G USP-4 (3,000pcs/Reel) MR-G SOT-25 (3,000pcs/Reel) Packages ( ) *1 SSOT-24 (3,000pcs/Reel) - NR-G (Order Unit) 7R-G USPN-4 (5,000pcs/Reel) 8R-G USP-6B06 (5,000pcs/Reel) (*1) The -G suffix denotes Halogen and Antimony free as well as being fully EU RoHS compliant. 2/18