UNISONIC TECHNOLOGIES CO., LTD UZ1085 3A ADJUSTABLE/FIXED LOW DROPOUT LINEAR REGULATOR TO-220 1 TO-220F 1 FEATURES *Fast transient response *Low dropout voltage at up to 3A *Load regulation:0.05% typical *Trimmed current limit *On-chip thermal limiting 1 DESCRIPTION The UTC UZ1085-xx series are low dropout three-terminal regulators with 3A 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. Current limit is trimmed to ensure specified output current and controlled short-circuit current. On-chip thermal limiting provides protection against any combination of overload and ambient temperature that would create excessive junction temperatures. LINEAR INTEGRATED CIRCUIT TO-252 1 TO-263-3 1 TO-263 ORDERING INFORMATION Ordering Number Pin Assignment Package Lead Free Halogen Free 1 2 3 UZ1085L-xx-TA3-T UZ1085G-xx-TA3-T TO-220 A/G O I UZ1085L-xx-TF3-T UZ1085G-xx-TF3-T TO-220F A/G O I UZ1085L-xx-TN3-R UZ1085G-xx-TN3-R TO-252 A/G O I UZ1085L-xx-TQ2-T UZ1085G-xx-TQ2-T TO-263 A/G O I UZ1085L-xx-TQ2-R UZ1085G-xx-TQ2-R TO-263 A/G O I UZ1085L-xx-TQ3-T UZ1085G-xx-TQ3-T TO-263-3 A/G O I UZ1085L-xx-TQ3-R UZ1085G-xx-TQ3-R 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 © 2014 Unisonic Technologies Co., Ltd Packing Tube Tube Tape Reel Tube Tape Reel Tube Tape Reel 1 of 7 QW-R102-013.I UZ1085 MARKING INFORMATION PACKAGE TO-220 TO-220F TO-252 TO-263 TO-263-3 LINEAR INTEGRATED CIRCUIT VOLTAGE CODE 15 :1.5V 18 :1.8V 25 :2.5V 33 :3.3V 50 :5.0V AD:ADJ MARKING Lot Code Voltage Code UTC UZ1085 XX L: Lead Free G: Halogen Free Date Code 1 BLOCK DIAGRAM UNISONIC TECHNOLOGIES CO., LTD www.unisonic.com.tw 2 of 7 QW-R102-013.I UZ1085 LINEAR INTEGRATED CIRCUIT ABSOLUTE MAXIMUM RATINGS PARAMETER SYMBOL RATINGS UNIT Input Voltage VIN 18 V Junction Temperature TJ +125 °C Operating Temperature TOPR -40 ~ +85 °C Storage Temperature TSTG -40 ~ +150 °C 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-220F TO-263/ TO-263-3 TO-252 TO-220/TO-263 Junction to Case TO-263-3 TO-220F SYMBOL RATINGS 118 θJA UNIT °C/W 62 12 4 θJC °C/W 7.6 ELECTRICAL CHARACTERISTICS (TA=25°C, COUT=22μF, unless otherwise specified.) For UZ1085-ADJ (Adjustable) PARAMETER SYMBOL Reference Voltage VREF Line Regulation △VOUT Load Regulation △VOUT Dropout Voltage VD Current Limit ILIMIT Adjust Pin Current IADJ Adjust Pin Current Change △IADJ Minimum Load Current IO(MIN) Quiescent Current IQ Ripple Rejection RR Thermal Regulation Temperature Stability VOUT Long-Term Stability VOUT Output Noise(% of VOUT) eN Thermal Shutdown TEST CONDITIONS 1.5V≤(VIN - VOUT) ≤8.25V,10mA≤IOUT≤3A (VOUT +1.5V) ≤VIN≤12V, IOUT=10mA (VIN - VOUT)=3V, 10mA≤IOUT≤3A △VREF%=1%, lOUT=3A (VIN-VOUT)=2V 1.5V≤ (VIN - VOUT) ≤12V, 10mA≤IOUT≤3A 1.5V≤ (VIN-VOUT) ≤12V VIN=12V f=120Hz,Tantalum,(VIN–VOUT)=3V IOUT=3A TA=25°C,30ms pulse TA=125°C, 1000hr TA=25°C,10Hz≤f≤10kHz UNISONIC TECHNOLOGIES CO., LTD www.unisonic.com.tw MIN 1.225 3.1 60 TYP MAX 1.25 1.275 0.005 0.2 0.05 0.5 1.30 1.40 4 35 120 0.2 5 10 4 13 72 0.004 0.02 0.5 0.03 1.0 0.003 150 UNIT V % % V A μA μA mA mA dB %/W % % % °C 3 of 7 QW-R102-013.I UZ1085 LINEAR INTEGRATED CIRCUIT ELECTRICAL CHARACTERISTICS (TA=25°C, COUT=22μF, unless otherwise specified.) For UZ1085-xx (Fixed Voltage) PARAMETER SYMBOL UZ1085-15 UZ1085-18 Output Voltage UZ1085-25 VOUT UZ1085-33 UZ1085-50 Line Regulation △VOUT Load Regulation △VOUT Dropout Voltage VD Current Limit ILIMIT Minimum Load Current IO(MIN) Quiescent Current IQ Ripple Rejection RR Thermal Regulation Temperature Stability △VOUT Long-Term Stability △VOUT Output Noise(% of VOUT) eN Thermal shutdown TEST CONDITIONS 3.0V≤VIN≤8.5V, 10mA≤IOUT≤3A 3.3V≤VIN≤8.8V, 10mA≤IOUT≤3A 4.0V≤VIN≤9.5V, 10mA≤IOUT≤3A 4.8V≤VIN≤10.3V, 10mA≤IOUT≤3A 6.5V≤VIN≤12V, 10mA≤IOUT≤3A (VOUT +1.5V) ≤VIN≤12V,IOUT=10mA (VIN – VOUT)=3V, 10mA≦IOUT≤3A △VREF%=1%, lOUT=3A (VIN-VOUT)=2V 1.5V≤ (VIN-VOUT) ≤12V VIN=12V f=120Hz, Tantalum, (VIN -VOUT)=3V,IOUT=3A TA=25°C,30ms pulse TA=125°C, 1000hr TA=25°C,10Hz≤f≤10kHz UNISONIC TECHNOLOGIES CO., LTD www.unisonic.com.tw MIN 1.470 1.764 2.450 3.234 4.900 3.1 60 TYP 1.5 1.8 2.5 3.3 5.0 0.005 0.05 1.30 4 MAX UNIT 1.530 V 1.830 V 2.550 V 3.366 V 5.100 V 0.2 % 0.5 % 1.40 V A 10 mA 4 13 mA 72 dB 0.004 0.02 %/W 0.5 % 0.03 1.0 % 0.003 % 150 °C 4 of 7 QW-R102-013.I UZ1085 LINEAR INTEGRATED CIRCUIT TYPICAL APPLICATION CIRCUIT UZ1085-3.3 VOUT VIN VIN=9V 22μF + UNISONIC TECHNOLOGIES CO., LTD www.unisonic.com.tw GND 3.3V at 3A + 22μF 5 of 7 QW-R102-013.I Reference Voltage (V) Reference Voltage (V) Output Voltage Deviation (%) Dropout Voltage (V) Adjust Pin Current (μA) Minmum Load Current (mA) UZ1085 UNISONIC TECHNOLOGIES CO., LTD www.unisonic.com.tw LINEAR INTEGRATED CIRCUIT TYPICAL CHARACTERISTICS QW-R102-013.I 6 of 7 UZ1085 LINEAR INTEGRATED CIRCUIT TYPICAL CHARACTERISTICS(Cont.) Ripple Rejections (dB) Short-Circuit Current (A) Maximum Power Dissipation 20 15 10 5 0 0 50 60 70 50 10 0 15 0 80 90 100 110 120 130 140 150 Case Temperature (°C) 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 7 of 7 QW-R102-013.I