XC8101 Series ETR2501-009 High Side Load Switch with Low Supply Current GENERAL DESCRIPTION The XC8101 series is a low supply current load switch IC with ON/OFF control and output current protection which integrates P-channel MOSFET. The XC8101 is suited for power distribution switch. With connecting to the output pin of step-down DC/DC converters, the CE pin controls ON/OFF for each distribution switch to deliver power per requirements and maximize total power efficiency. As result, the XC8101 helps extend battery life and product operation time. The XC8101 is available in an ultra small package USP-4 and does not require any external capacitors so that it can provide small power unit design and board space saving. When low signal is input to the CE pin, the XC8101 enters stand-by mode. Even where a load capacitor is connected to the output pin during in the stand-by mode, the internal switch between the V and V of the XC8101 enables the electric charge OUT SS in the load capacitor to be discharged. Because of this discharge function, the VOUT pin voltage falls quickly to V level. SS The XC8101 contains an over current protection with foldback current circuitry which operates as over current protection and short circuit protection for the output pin. FEATURES APPLICATIONS On Resistance : 0.75 V =2.9V (TYP.) IN Smart phones / Mobile phones : 1.15 VIN=1.8V (TYP.) Output Current : 200mA Digital still cameras / Camcorders <Current Limit =300mA (TYP.)> Portable game consoles Input Voltage Range : 1.8V ~ 6.0V Power Consumption : 3.0A V =1.8V IN Stand-by Current : 0.1A Protection Circuit : Current limit, 300mA (TYP.) : Short-circuit Protection, Short current= 30mA (TYP.) ON/OFF Function : High Active Enable High-Speed Discharge Function Operating Temperature Range : -40 ~85 Packages : USP-4, SSOT-24, SOT-25 Environmentally Friendly : EU RoHS Compliant, Pb Free TYPICAL PERFORMANCE TYPICAL APPLICATION CIRCUIT CHARACTERISTICS Supply Current vs. Input Voltage XC8101AA01 DC/DC OUT 2.1V VIN=CE VIN VOUT VIN IN VOUT CIN=None, CL=None XC8101 CPU Step Down CE 6.0 VSS ON/OFF Li-ion DC/DC CIN Control 3.6V CL XC9235 5.0 4.0 VIN IN VOUT CPU XC8101 3.0 CE VSS ON/OFF Control CIN CL 2.0 Ta=85 25 1.0 -40 VIN VOUT IN 0.0 XC8101 CPU CE 0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0 5.5 6.0 VSS ON/OFF Control CIN CL Input Voltage: VIN (V) 1/34 Supply Current: IDD (A) XC8101 Series BLOCK DIAGRAM XC8101AA Series VIN VOUT GATE Current CONTROL Limit Rdischg CE each ON/OFF CE circuit Control CE/ CE/ VSS * Diodes inside the circuit are an ESD protection diode and a parasitic diode. XC8101AA PRODUCT CLASSIFICATION Ordering Information ( ) *1 XC8101- DESIGNATOR ITEM SYMBOL DESCRIPTION CE pin logic A High active enable Output capacitor (CL) auto-discharge C Discharge Function A L function integrated Internal Standard 01 Fixed Number GR-G USP-4 (3,000pcs/Reel) Packages ( ) *1 MR-G SOT-25 (3,000pcs/Reel) - (Order Unit) SSOT-24 (3,000pcs/Reel) NR-G (*1) The -G suffix indicates that the products are Halogen and Antimony free as well as being fully EU RoHS compliant. 2/34