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| NIKO-SEM 5A Adjustable Low Dropout Linear Regulator (LDO) FEATURES L1084XG TO-252, 263, 220 Lead-Free GENERAL DESCRIPTION The L1084G is a positive and low dropout three-terminal voltage regulator with 5A output current capability. This device is designed for use in low voltage applications that offers lower dropout voltage and faster transient response. This device is fully protected against over current faults, over temperature operation, reversed input polarity, reversed lead insertion, transient voltage spike ...etc. On-Chips trimming the reference voltage to 1% and features the low dropout of maximum 1.45 volts. The L1084G Series regulators are available in the popular industry standard TO-220, TO-263 and TO-252 packages. Very easy to use, it requires only two external resistors to set the output voltage Low dropout voltage: 1.2V typical at up to 5A Low ground current Fast transient response Current & thermal limiting Line regulation: 0.5% typical Load regulation: 0.5% typical TO-220, TO-263 and TO-252 packages APPLICATIONS High current microprocessor supplies Low voltage logic supply Powering VGA & sound card Portable instrumentation Constant current regulator Post regulator for switching power supply TYPICAL APPLICATION Vin IN L1084 OUT ADJ Vref Vout R1 + Cin 10uF + Cout 10uF Iadj R2 Vo = Vref (1+R2/R1) + Iadj x R2 1. Cin needed if device is far from from filter capacitors. 2. Cout required for stability. - Basic Adjustable Regulator Circuit - 1 JUL-08-2004 NIKO-SEM 5A Adjustable Low Dropout Linear Regulator (LDO) L1084XG TO-252, 263, 220 Lead-Free ABSOLUTE MAXIMUM RATINGS Maximum Supply Voltage Power Dissipation Thermal Resistance Junction to Case, JC Thermal Resistance Junction to Ambient, JA TO-220 TO-263 TO-252 7V Internally Limited 2.5 C/W Operating Junction Temperature Range Storage Temperature Range Lead Temperature (Soldering, 10 Seconds) 0 to 125 C -40 to 150 C 260 C 50 C/W 60 C/W 70 C/W ELECTRICAL CHARACTERISTICS (Unless otherwise specified, TA = 25 C.) Parameter Reference Voltage Dropout Voltage Line Regulation Load Regulation Minimum Load Current Symbol VREF Test Conditions VIN = 5V, IOUT = 10mA Typical 1.25V 1.2V 0.5% 0.5% 10mA 55A 7.5A 0.003% of VOUT 72dB Limits 1.23VMin 1.27VMax 1.45V 2% 2.5% 100A 5.0A (Min) VD VREF = 1%, IOUT = 5A REG(LINE) (VOUT + 1.5V) VIN 7V, IOUT = 10mA REG(LOAD) (VIN -VOUT) = 3V, 10mA IOUT 5A IO IADJ ICL VN RA f = 120Hz, CADJ = 22F for ADJ pin, VIN = 5V, IOUT = 5A 1.5V (VIN -VOUT) 5.75V VIN - VOUT = 2V Adjust Pin Current Current Limit RMS Output Noise Ripple Rejection Ratio 60dB (Min) DEVICE SELECTION GUIDE Device Package Marking L1084DG TO-252 L1084DG L1084SG TO-263 (2-Lead) L1084SG L1084S3G TO-263 (3-Lead) L1084S3G L1084TG TO-220 L1084TG Orders for parts with Lead-Free plating can be placed using the LXXXXXG parts name. 2 JUL-08-2004 NIKO-SEM 5A Adjustable Low Dropout Linear Regulator (LDO) L1084XG TO-252, 263, 220 Lead-Free PIN CONFIGURATIONS Pin # 1 2 3 Function Adjust Output Input Note: TAB is Output Pin 3 JUL-08-2004 NIKO-SEM 5A Adjustable Low Dropout Linear Regulator (LDO) TO-263 (D2PAK) MECHANICAL DATA mm L1084XG TO-252, 263, 220 Lead-Free Dimension A B C D E F G Min. 14.5 4.2 1.20 Typ. 15 Max. 15.8 4.7 1.35 Dimension H I J K L M N mm Min. 1.0 9.8 6.5 1.5 0.7 4.83 5.08 1.4 5.33 Typ. 1.5 Max. 1.8 10.3 2.8 0.3 -0.102 8.5 9 0.4 0.5 0.203 9.5 A B C H G F J 3 K 1 M 2 I L D E 4 JUL-08-2004 NIKO-SEM 5A Adjustable Low Dropout Linear Regulator (LDO) L1084XG TO-252, 263, 220 Lead-Free TO-263 (D2PAK) MECHANICAL DATA mm Min. 14.5 4.2 1.20 2.8 0.3 -0.102 8.5 9 0.4 0.5 0.203 9.5 Typ. 15 Max. 15.8 4.7 1.35 mm Min. 1.0 9.8 6.5 1.5 0.7 4.83 5.08 1.4 5.33 Typ. 1.5 Max. 1.8 10.3 Dimension A B C D E F G Dimension H I J K L M N A B C H G F J 3 K 1 M 2 I L D E 5 JUL-08-2004 NIKO-SEM 5A Adjustable Low Dropout Linear Regulator (LDO) L1084XG TO-252, 263, 220 Lead-Free TO-220 (3-Lead) MECHANICAL DATA Dimension A B C D E F G 28.5 14.6 8.4 0.72 mm Min. 9.78 2.61 Typ. 10.16 2.74 20 28.9 15.0 8.8 0.8 29.3 15.4 9.2 0.88 Max. 10.54 2.87 Dimension H I J K L M N mm Min. 2.4 1.19 4.4 1.14 2.3 0.26 Typ. 2.54 1.27 4.6 1.27 2.6 0.46 7 Max. 2.68 1.35 4.8 1.4 2.9 0.66 J A B K C I D 1 2 3 F E H L G M 6 JUL-08-2004 NIKO-SEM 5A Adjustable Low Dropout Linear Regulator (LDO) TO-252 (DPAK) MECHANICAL DATA mm L1084XG TO-252, 263, 220 Lead-Free Dimension A B C D E F G Min. 9.35 2.2 0.45 0.89 0.45 0.03 5.2 Typ. Max. 10.4 2.4 0.6 1.5 0.69 0.23 6.2 Dimension H I J K L M N mm Min. 0.89 6.35 5.2 0.6 0.5 3.96 4.57 Typ. Max. 2.03 6.80 5.5 1 0.9 5.18 A B F C H G L 3 1 K M 2 J I D E 7 JUL-08-2004 |
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