UNISONIC TECHNOLOGIES CO., LTD UZ1084 5A ADJUSTABLE/FIXED LOW DROPOUT LINEAR REGULATOR 1 TO-220 DESCRIPTION The UTC UZ1084-ADJ/Fixed voltages are low dropout three-terminal regulators with 5A output current capability. These devices have been optimized for low voltage applications including VTT bus termination, where transient response and minimum input voltage are critical. On-chip thermal limiting provides protection against any combination of overload and ambient temperature that would create excessive junction temperatures. LINEAR INTEGRATED CIRCUIT 1 TO-220F 1 *Fast transient response *Low dropout Voltage at up to 5A *Load regulation : 0.5% typical *On-chip thermal limiting 1 TO-263-3 APPLICATIONS *Desktop PCs, RISC and embedded processors’ supply *GTI, SSTL logic reference bus supply *Low voltage VCC logic supply *Battery-powered circuitry *Post regulator for switching supply *Cable and ADSL modems’ DSP core supply *Set Top Boxes and Web Boxes modules’ supply TO-252 FEATURES 1 TO-263 ORDERING INFORMATION Ordering Number Pin Assignment Package Lead Free Halogen Free 1 2 3 UZ1084L-xx-TA3-T UZ1084G-xx-TA3-T TO-220 A/G O I UZ1084L-xx-TF3-T UZ1084G-xx-TF3-T TO-220F A/G O I UZ1084L-xx-TN3-R UZ1084G-xx-TN3-R TO-252 A/G O I UZ1084L-xx-TN3-T UZ1084G-xx-TN3-T TO-252 A/G O I UZ1084L-xx-TQ2-R UZ1084G-xx-TQ2-R TO-263 A/G O I UZ1084L-xx-TQ2-T UZ1084G-xx-TQ2-T TO-263 A/G O I UZ1084L-xx-TQ3-R UZ1084G-xx-TQ3-R TO-263-3 A/G O I UZ1084L-xx-TQ3-T UZ1084G-xx-TQ3-T TO-263-3 A/G O I Note: 1. xx: Output voltage, refer to Marking Information. 2. A: ADJ (for adjustable regulator), G: GND (for fixed regulator), O:VOUT, I:VIN www.unisonic.com.tw Copyright © 2012 Unisonic Technologies Co., Ltd Packing Tube Tube Tape Reel Tube Tape Reel Tube Tape Reel Tube 1 of 6 QW-R102-010,K UZ1084 LINEAR INTEGRATED CIRCUIT MARKING INFORMATION PACKAGE VOLTAGE CODE TO-220 TO-220F TO-252 TO-263 TO-263-3 15 :1.5V 18 :1.8V 25 :2.5V 33 :3.3V 50 :5.0V AD:ADJ MARKING LOT Code Voltage Code UNISONIC TECHNOLOGIES CO., LTD www.unisonic.com.tw UTC UZ1084 XX 1 2 L: Lead Free G: Halogen Free Date Code 3 2 of 6 QW-R102-010,K UZ1084 LINEAR INTEGRATED CIRCUIT ABSOLUTE MAXIMUM RATINGS (TA=25°С) PARAMETER SYMBOL RATINGS UNIT DC Input Voltage VIN 15 V Operating Temperature TOPR 0 ~ +125 °С Storage Temperature TSTG -65 ~ 150 °С Note: Absolute maximum ratings are those values beyond which the device could be permanently damaged. Absolute maximum ratings are stress ratings only and functional device operation is not implied. THERMAL DATA PARAMETER TO-252 Junction to Ambient TO-220 TO-263/TO-263-3 TO-252 Junction to Case TO-220 TO-263/TO-263-3 SYMBOL θJA θJC RATINGS 112 54 64 12 4 4 UNIT °C/W °C/W °C/W °C/W °C/W °C/W ELECTRICAL CHARACTERISTICS For UZ1084-Adjustable (Operating Conditions: 4.75≤VIN≤5.25, TJ =25°С unless otherwise specified) PARAMETER Reference Voltage Line Regulation Load Regulation Dropout Voltage Current Limit Adjust Pin Current Adjust Pin Current Change Minimum Load Current Thermal shutdown SYMBOL VREF ΔVOUT ΔVOUT VD ILIMIT IADJ ΔIADJ IO(MIN) TEST CONDITIONS IOUT=10mA lOUT=10mA 10mA≤lOUT≤ 5A △VREF%=2%, lo=5A (VIN-VOUT)=2V 1.5V≤(VIN-VOUT)≤ 5.75V, 10mA≤lOUT≤5A 1.5V≤(VIN-VOUT)≤5.75V MIN 1.23 TYP 1.25 0.5 0.5 5.5 6.5 35 5 150 MAX UNIT 1.27 V 2 % 2.5 % 1.5 V A 100 μA 5 μA 10 mA °C For UZ1084-xx (Fixed Voltage) (Operating Conditions: 1.5V≤ (VIN-VOUT) ≤5.75V, TJ=25°С unless otherwise specified) PARAMETER SYMBOL TEST CONDITIONS 1% UZ1084-15 lOUT=10mA 2% 1% UZ1084-18 lOUT=10mA 2% 1% Output Voltage VOUT UZ1084-25 lOUT=10mA 2% 1% UZ1084-33 lOUT=10mA 2% 1% UZ1084-50 lOUT=10mA 2% Line Regulation ΔVOUT IOUT=10mA Load Regulation ΔVOUT 10mA≤lOUT≤5A Dropout Voltage VD △VREF%=2%, lOUT=5A Current Limit ILIMIT (VIN-VOUT)=2V Minimum Load Current ΔIADJ 1.5V≤ (VIN-VOUT) ≤5.75V Quiescent Current IQ VIN=12V Thermal shutdown UNISONIC TECHNOLOGIES CO., LTD www.unisonic.com.tw MIN. TYP MAX UNIT 1.485 1.5 1.515 V 1.470 1.5 1.530 V 1.782 1.8 1.818 V 1.764 1.8 1.836 V 2.475 2.5 2.525 V 2.450 2.5 2.550 V 3.267 3.3 3.333 V 3.234 3.3 3.366 V 4.950 5.0 5.050 V 4.900 5.0 5.100 V 0.5 2 % 0.5 2.5 % 1.5 V 5.5 6.5 A 5 10 mA 10 13 mA 150 °C 3 of 6 QW-R102-010,K UZ1084 LINEAR INTEGRATED CIRCUIT TYPICAL APPLICATION CIRCUITS Adjustable Voltage Regulator UZ1084-ADJ VOUT VIN=12V VOUT=1.5V at 5A VIN 22μF ADJ + VOUT=VREF(1+R2/R1)+IADJ*R2 + R1 124Ω 22μF R2 124Ω Fixed Voltage Regulator UZ1084-1.5 VIN VIN=3.3V + 10µF UNISONIC TECHNOLOGIES CO., LTD www.unisonic.com.tw VOUT GND + VOUT=1.5 V at 5A 22µF 4 of 6 QW-R102-010,K UZ1084 LINEAR INTEGRATED CIRCUIT TYPICAL CHARACTERISTICS Minimum Load Current v.s. Temperature 5 Minimum Load Current (mA) Dropout Voltage, VD (V) Dropout Voltage vs. Output Current 2.0 1.9 1.8 1.7 1.6 1.5 1.4 1.3 1.2 1.1 1.0 0.9 0.8 0.7 0.6 0.5 T=-25°С T=25°С T=125°С 4 3 2 1 0 1 2 3 4 Output Current, IOUT (A) -40 -20 5 Short-Circuit Current v.s. Temperature Adjust Pin Current v.s. Temperature Adjust Pin Current (µA) 6 5 60 50 40 30 20 10 -40 -20 3.38 0 -40 -20 20 40 60 80 100 120 Temperature (°С) Output Voltage v.s. Temperature 8 VOUT=3.3V Quiescent Current, IQ (mA) Short-Circuit Current (A) 7 3.40 Output Voltage, VOUT (V) 20 40 60 80 100 120 Temperature (°С) 70 8 4 0 3.36 3.34 3.32 3.30 3.28 3.26 3.24 0 20 40 60 80 100 120 Temperature (°С) Quiescent Current v.s. Temperature 7 6 5 4 3 3.22 3.20 -40 -20 0 20 40 60 80 100 120 Temperature (°С) 2 -40 -20 0 20 40 60 80 100 120 Temperature (°С) TYPICAL CHARACTERISTICS(Cont.) UNISONIC TECHNOLOGIES CO., LTD www.unisonic.com.tw 5 of 6 QW-R102-010,K UZ1084 1.270 LINEAR INTEGRATED CIRCUIT Reference Voltage vs. Temperature Load Regulation vs. Temperature 0.10 ΔI=5A Output Voltage Deviation(%) Reference Voltage (V) 1.265 1.260 1.255 1.250 1.245 1.240 1.235 1.230 1.225 -40 -20 0 20 40 60 80 100 120 Temperature (°С) 0.05 0 -0.05 -0.10 -0.15 -0.20 -40 -20 0 20 40 60 80 100 120 Temperature (°С) Ripple Rejection vs. Frequency 90 Ripple Rejections(dB) 80 70 60 50 40 30 20 VIN-VOUT=3V, 0.5<Vripple<2V IOUT=0.1A 10 0 10 100 1K 10k 100k Frequency(Hz) UTC assumes no responsibility for equipment failures that result from using products at values that exceed, even momentarily, rated values (such as maximum ratings, operating condition ranges, or other parameters) listed in products specifications of any and all UTC products described or contained herein. UTC products are not designed for use in life support appliances, devices or systems where malfunction of these products can be reasonably expected to result in personal injury. Reproduction in whole or in part is prohibited without the prior written consent of the copyright owner. The information presented in this document does not form part of any quotation or contract, is believed to be accurate and reliable and may be changed without notice. UNISONIC TECHNOLOGIES CO., LTD www.unisonic.com.tw 6 of 6 QW-R102-010,K