XC6901 Series ETR03043-007 200mA Negative Voltage Regulator with ON/OFF Control GENERAL DESCRIPTION The XC6901 Series is a negative voltage CMOS regulator which includes a reference voltage source, error amplifier, driver transistor, current limiter and phase compensator. The CE function enables the circuit to be in stand-by mode by inputting low level signal. In the stand-by mode, the electric charge at the output capacitor (C ) will be discharged via the internal auto-discharge switch and as a result the -V pin L OUT quickly returns to the V level. SS The over current protection circuit will operate when the output current reaches limit current. The thermal shutdown circuit will operate when the junction temperature reaches limit temperature. FEATURES APPLICATIONS Maximum Output Current : 200mA Negative power supplies Input Voltage Range : -2.4V -12.4V(V 3.6V) CE Output Voltage Range : Modules (Wireless LAN, Digital still cameras, etc) -0.9V~-12.0V Accuracy : 1.5%(V 2.0V) OUT Digital still cameras 0.03VV 2.0V OUT Mobile devices / terminals Temperature Stability : TYP. 50ppm/ CE High Level Voltage : +1.2V~+3.6V,(Active High) Dropout Voltage : 400mVI =100mA OUT Low Power Consumption : 100A MAX. : Less than 0.1A Stand-by Current Protection Circuits : Current Limit 350mA TYP, Foldback Overheat Protection T =150 TSB Output Capacitor : Ceramic Capacitor Compatible : C High-Speed Discharge Built-in Function L Operating Ambient Temperature -40~85 Packages : SOT-25, SOT-89-5, USP-6C : EU RoHS Compliant, Pb Free Environmentally Friendly TYPICAL PERFORMANCE TYPICAL APPLICATION CIRCUIT CHARACTERISTICS XC6901x501 CL:1.0F (ceramic) I =1100mA,tr=tf=5s,Ta=25,V =1.5V OUT CE V =-6V,C =1F(ceramic),C =1F(ceramic) IN IN L GND -4.6 300 C : 1. 0 F IN -4.8 250 -V Output Voltage (ceram ic) OUT -5.0 200 -V IN -5.2 150 Output Current NC CE -5.4 100 1mA -5.6 50 100mA SOT - 25 -5.8 0 TOP VIEW ) Time(100s/div) 1/28 Output Voltage: VOUT V Output Current: I mA OUT XC6901 Series PIN CONFIGURATION * The dissipation pad for the USP-6C package should be solder-plated in recommended mount pattern and metal masking to enhance mounting strength and heat release. If the pad needs to be connected to other pins, it should be connected to the -V (No. 3) pin. IN PIN ASSIGNMENT PIN NUMBER PIN NAME FUNCTIONS USP-6C SOT-25 SOT-89-5 1 5 5 -V Negative Output OUT 2,5 4 1 NC No Connection 3 2 2 -V Negative Supply Input IN 4 3 3 CE ON/OFF Control 6 1 4 GND Ground FUNCTION CHART XC6901 Series D type PIN NAME SIGNAL STATUS L Stand-by CE H Active OPEN Stand-by 2/28