L1084-3.3

NIKO-SEM 5A Fixed Low Dropout Linear Regulator (LDO) FEATURES L1084-3.3 TO-252,263,220 GENERAL DESCRIPTION The L1084 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 L1084 Series regulators are available in the popular industry standard TO-263 TO-220 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-263, TO-220 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>4.75V IN OUT Vout=3.3V L1084-3.3 Cin 10uF 10uF GND Cout RL Basic Fixed Output Regulator Circuit 1 DEC-08-2001 NIKO-SEM 5A Fixed Low Dropout Linear Regulator (LDO) L1084-3.3 TO-252,263,220 ABSOLUTE MAXIMUM RATINGS Maximum Supply Voltage Power Dissipation Thermal Resistance Junction to Case, θJC Thermal Resistance Junction to Ambient, θJA TO-263 TO-252 TO-220 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 60 °C/W 70 °C/W 50 °C/W ELECTRICAL CHARACTERISTICS (Unless otherwise specified, TA = 25 °C.) Parameter Output Voltage (Fixed Version) Dropout Voltage Line Regulation Load Regulation Minimum Load Current Symbol Vo Test Conditions VIN = 5V, IOUT = 10mA Typical 3.3V 1.2V 0.5% 0.5% 10mA 55µA 7.5A 0.003% of VOUT 72dB Limits 3.234VMin 3.367VMax 1.45V 2% 2.5% 100µA 5.0A (Min) VD ΔVREF = 1%, IOUT = 3A REG(LINE) (VOUT + 1.5V) ≤ VIN ≤ 7V, IOUT = 10mA REG(LOAD) (VIN -VOUT) = 3V, 10mA ≤ IOUT ≤ 3A IO IGND ICL VN RA f = 120Hz, CADJ = 22µF for ADJ pin, VIN = 5V, IOUT = 5A 1.5V ≤ (VIN -VOUT) ≤ 5.75V VIN - VOUT = 2V GND Pin Current Current Limit RMS Output Noise Ripple Rejection Ratio 60dB (Min) DEVICE SELECTION GUIDE Device Package Marking L1084D-3.3 TO-252 L1084-33 L1084S-3.3 L1084-33 L1084S3-3.3 L1084-33 L1084T-3.3 TO-220 L1084-33 TO-263 (2-Lead) TO-263 (3-Lead) 2 DEC-08-2001 NIKO-SEM PIN CONFIGURATIONS 5A Fixed Low Dropout Linear Regulator (LDO) L1084-3.3 TO-252,263,220 Pin # 1 2 3 Function GND Output Input Note: TAB is Output Pin 3 DEC-08-2001 NIKO-SEM 5A Fixed Low Dropout Linear Regulator (LDO) TO-263 (D2PAK) MECHANICAL DATA mm Min. 14.5 4.2 1.20 2.8 0.3 0.4 9 0.5 0.203 9.5 Typ. 15 Max. 15.8 4.7 1.35 L1084-3.3 TO-252,263,220 Dimension A B C D E F G 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 -0.102 8.5 4 DEC-08-2001 NIKO-SEM 5A Fixed Low Dropout Linear Regulator (LDO) TO-263 (D2PAK) MECHANICAL DATA mm L1084-3.3 TO-252,263,220 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 5 DEC-08-2001 NIKO-SEM 5A Fixed Low Dropout Linear Regulator (LDO) TO-220 (3-Lead) MECHANICAL DATA mm L1084-3.3 TO-252,263,220 Dimension A B C D E F G Min. 9.78 2.61 28.5 14.6 8.4 0.72 Typ. 10.16 2.74 20 28.9 15.0 8.8 0.8 Max. 10.54 2.87 29.3 15.4 9.2 0.88 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 6 DEC-08-2001 NIKO-SEM 5A Fixed Low Dropout Linear Regulator (LDO) TO-252 (DPAK) MECHANICAL DATA mm Min. 9.35 2.2 0.48 0.89 0.45 0.03 6 Typ. Max. 10.1 2.4 0.6 1.5 0.6 0.23 6.2 L1084-3.3 TO-252,263,220 Dimension A B C D E F G Dimension H I J K L M N mm Min. 6.4 5.2 0.6 0.64 4.4 Typ. 0.8 6.6 5.4 1 0.9 4.6 Max. 7 DEC-08-2001