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| U584/5/7 LINEAR INTEGRATED CIRCUIT 3~8 AMP 5V TO 3.3V VOLTAGE CONVERSION REGULATOR DESCRIPTION 1 The Contek U584/585/587 voltage regulators are monolithic integrated circuits, designed for use in applications requiring a well regulated positive output voltage with +5V input. The output voltage can be adjustable from 3.8 V down to 1.3V. TO-220 FEATURES www..com *Low dropout performance. *Adjustable output down to 1.3V. *Line regulation typically below 0.1%. *Load regulation typically below 0.1%. *Output current can be up to 8 A for Contek U584. 1 TO-263 1: COMMON 2: OUTPUT 3: INPUT BLOCK DIAGRAM INPUT SAFE AREA PROTECTION CURRENT LIMITING OUTPUT OVER TEMPERATURE PROTECTION VOLTAGE REGULATION AMPLIFIER ADJUST Contek Contek Microelectronics Co.,Ltd. CONTEK http://www.contek-ic.com E-mail:sales@contek-ic.com 1 U584/5/7 PARAMETER Input Voltage Power Dissipation Operating Junction Temperature Range Storage Temperature Lead Temperature ( Soldering 10 Sec. ) LINEAR INTEGRATED CIRCUIT SYMBOL VIN PD TJ TSTG TLEAD ABSOLUTE MAXIMUM RATINGS VALUE 7 Internally Limited 0 to 125 -65 to 150 300 UNIT V W C C C www..com ELECTRICAL CHARACTERISTICS Reference Voltage PARAMETER U584 U585 U587 SYMBOL 1.3V<=(VIN-VOUT)<=3V, 10mA<=IOUT<=8A 1.3V<=(VIN-VOUT)<=3V, 10mA<=IOUT<=5A , 1.3V<=(VIN-VOUT)<=3V, 10mA<=IOUT<=3A 2.75V<=VIN<=7V,I OUT= IFULLLOAD VIN-VOUT=1.3V.Tj=25 C, 10mA<=IOUT<=IFULLLOAD VREF=1%,I UT= IFULLLOAD O Tj>=25 C Tj<=25 C VIN-VOUT =1.3 V VIN-VOUT =1.3 V VIN-VOUT =1.3 V 1.5V<=(VIN-VOUT) <=3 V, 10mA<=IOUT<=IFULLLOAD 1.5V<=(VIN-VOUT) <=3V, VIN<=5V f=120Hz,COUT=25mATant, VIN-VOUT =1.3 V , IOUT= IFULLLOAD TA=25 C,1000Hrs TA=125 C,10Hz<=f<=10kHz TEST CONDITIONS * 1.225 (-2%) MIN TYP MAX 1.25 1.275 (+2%) UNIT V Line Regulation (Note 1.2) Load Regulation (Note 1, 2, 3) Dropout Voltage U584/5/7 U584/5/7 U584/5/7 * 0.1 0.2 1.2 1.2 0.2 1.0 1.3 1.35 % % V V A A A mA mA mA mA dB U584 Current Limit (Note 3) U585 U587 Adjust Pin Current U584/5/7 Adjust Pin Current U584/5/7 Change (Note 3) Minimum Load U584/5/7 Current Quiescent Circuit U584/5/7 Current Ripple Rejection U584/5/7 Temperature Stability Long-Term Stability RMS Output Noise ( % of VOUT ) Thermal Resistance U584 Junction to Case U585/7 * * 8.0 5.0 3.0 8.5 5.5 3.6 55 0.2 2 8 120 5 10 13 * * 60 72 0.5 0.03 0.03 1.0 1.6 3.0 % % % C /W C /W The * denotes specifications which apply over the specified operating temperature range. Note 1: Load and line regulation are measured at a constant junction temperature by low duty cycle pulse testing. Contek Microelectronics Co.,Ltd. CONTEK http://www.contek-ic.com E-mail:sales@contek-ic.com 2 U584/5/7 LINEAR INTEGRATED CIRCUIT Note 2: Line and load regulation are guaranteed up to the maximum power dissipation(15W for the Contek U584, 10W for theContek U585). Power dissipation is determined by input / output differential and the output current. Guaranteed maximum output power will not be available over the full input-output voltage range. Note 3: IFULLLOAD is defined as the maximum value of output load current as a function of input-to-output voltage. Output current can be different for different input-to-output voltage. APPLICATION CIRCUIT VIN 3 www..com 4.74V Contek U584/5/7 1 IADJ 2 TAB R1 127 W 1% R2 221 W 1% VOUT VREF 3.45V @7.5A C2 10 mF TANT C1 10 mF REQUIRED FOR STABILITY VOUT =VREF* (1+R2/R1)+I ADJ* R2 Contek Microelectronics Co.,Ltd. CONTEK http://www.contek-ic.com E-mail:sales@contek-ic.com 3 U584/5/7 LINEAR INTEGRATED CIRCUIT TYPICAL PERFORMANCE CHARACTERISTICS www..com Contek Microelectronics Co.,Ltd. CONTEK http://www.contek-ic.com E-mail:sales@contek-ic.com 4 U584/5/7 LINEAR INTEGRATED CIRCUIT TYPICAL PERFORMANCE CHARACTERISTICS www..com Contek Microelectronics Co.,Ltd. CONTEK http://www.contek-ic.com E-mail:sales@contek-ic.com 5 U584/5/7 LINEAR INTEGRATED CIRCUIT TYPICAL PERFORMANCE CHARACTERISTICS www..com Contek Microelectronics Co.,Ltd. CONTEK http://www.contek-ic.com E-mail:sales@contek-ic.com 6 |
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