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| SICORE CX1085 3A Low dropout voltage regulator FEATURES Three Terminal Adjustable or Fixed Voltages 1.5V, 1.8V, 2.5V, 2.85V, 3.3V and 5.0V Output Current of 3A Operates Down to 1V Dropout Line Regulation: 0.2% Max. Load Regulation: 0.4% Max. TO-263-2,TO-263-3,TO252-2 and TO-220 package available TO-263-2 TO-263-3 APPLICATIONS High Efficiency Linear Regulators Post Regulators for Switching Supplies Microprocessor Supply Constant Current Regulators Power Management for Notebook Battery Chargers Notebook/Personal Computer Supplies Portable Instrumentation TO-252-2 TO-220 ORDERING INFORMATION PACKAGE TYPE TO-263-2&3 CX1085-ADJ CX1085-1.5 CX1085-1.8 CX1085-2.5 CX1085-2.85 CX1085-3.3 CX1085--5.0 TO-252-2 CX1085-ADJ CX1085-1.5 CX1085-1.8 CX1085-2.5 CX1085-2.85 CX1085-3.3 CX1085-5.0 TO-220 CX1085-ADJ CX1085-1.5 CX1085-1.8 CX1085-2.5 CX1085-2.85 CX1085-3.3 CX1085-5.0 OPERATING JUNCTION TEMPERATURE RANGE 0 to 125 C 0 to 125 C 0 to 125 C 0 to 125 C 0 to 125 C 0 to 125 C 0 to 125 C SICORE ELECTRICAL CHARACTERISTICS CX1085 3A Low dropout voltage regulator Electrical Characteristics at IOUT = 0 mA, and TJ = +25C unless otherwise specified. Parameter Device Conditions Min Typ Output Voltage Line Regulation CX1085 CX1085 IOUT = 10 mA 10mA IOUT 3A, 1.5V (VIN - VOUT) 12V IOUT = 10 mA , 1.5V (VIN - VOUT) 12V (VIN - VOUT) =3V, 10mAIOUT 5A VOUT , VREF = 1%, IOUT = 3A (VIN - VOUT) = 5V (VIN - VOUT) = 12V VIN 12V f =120Hz , COUT = 22F Tantalum, IOUT = 3A, (VIN-VOUT ) = 3V, CADJ =10F TA = 25C, 30ms pulse 10mA IOUT 3A, 1.5V (VIN - VOUT) 12V 10mA IOUT 3A, 1.5V (VIN- VOUT) 12V TO-220:Control Circuitry/Power Transistor TO-263:Control Circuitry/Power Transistor 5.0 Max 1.0 2.0 Units % % mV mV % V A mA mA dB Load Regulation CX1085 (Notes 2, 3) Dropout CX1085 Voltage(VIN - VOUT) Current Limit CX1085 Minimum Load CX1085 Current Quiescent Current CX1085 Ripple Rejection Thermal Regulation CX1085 CX1085 0.3 0.6 0.1 0.2 1.3 6.0 5 5 60 75 0.008 55 6.0 10.0 0.3 0.4 1.5 7.0 10 10 0.04 120 %W A A A Adjust Pin Current CX1085 Adjust Pin Current CX1085 Change Thermal Resistance CX1085 Junction-to-Case 0.2 5.0 1.5/4.0 C/W 1.5/4.0 APPLICATION CIRCUITS CX1085 IN OUT ADJ VREF VIN Cin 10uF VOUT R1 120 Cout 100uF R2 1k VIN > 9.0V Cin 10uF CX1085 VOUT=7.5V OUT IN 5.0 2.5V Cout 100uF Vout =7.5V VOUT = VRE F (1+ R2/R1)+IADJR2 Application 1:1.25V to 10V Adjustable Regulator Application2: Regulator with reference |
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