UNISONIC TECHNOLOGIES CO., LTD UZ1085 LINEAR INTEGRATED CIRCUIT 3A ADJUSTABLE/FIXED LOW DROPOUT LINEAR REGULATOR 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. FEATURES *Fast transient response *Low dropout voltage at up to 3A *Load regulation:0.05% typical *Trimmed current limit *On-chip thermal limiting Lead-free: UZ1085L-xx Halogen-free: UZ1085G-xx ORDERING INFORMATION Normal UZ1085-xx-TA3-T UZ1085-xx-TN3-R UZ1085-xx-TQ2-R UZ1085-xx-TQ2-T UZ1085-xx-TQ3-R UZ1085-xx-TQ3-T Ordering Number Lead Free Halogen Free UZ1085L-xx-TA3-T UZ1085G-xx-TA3-T UZ1085L-xx-TN3-R UZ1085G-xx-TN3-R UZ1085L-xx-TQ2-R UZ1085G-xx-TQ2-R UZ1085L-xx-TQ2-T UZ1085G-xx-TQ2-T UZ1085L-xx-TQ3-R UZ1085G-xx-TQ3-R UZ1085L-xx-TQ3-T UZ1085G-xx-TQ3-T Package TO-220 TO-252 TO-263 TO-263 TO-263-3 TO-263-3 Pin Assignment 1 2 3 A/G O I A/G O I A/G O I A/G O I A/G O I A/G O I Packing Tube Tape Reel Tape Reel Tube Tape Reel Tube 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 © 2009 Unisonic Technologies Co., Ltd 1 of 7 QW-R102-013,G UZ1085 LINEAR INTEGRATED CIRCUIT MARKING INFORMATION PACKAGE VOLTAGE CODE TO-220 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 UZ1085 XX 1 2 L: Lead Free G: Halogen Free Date Code 3 2 of 7 QW-R102-013,G UZ1085 LINEAR INTEGRATED CIRCUIT ABSOLUTE MAXIMUM RATINGS PARAMETER SYMBOL RATINGS UNIT Input Voltage VIN 18 V (VIN - VOUT) ×IOUT See Figure 1 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 Junction to Ambient Junction to Case SYMBOL TO-252 TO-220 TO-263 TO-252 TO-220 TO-263 θJA θJC RATINGS 118 62 62 12 4 4 UNIT °C/W °C/W °C/W °C/W °C/W °C/W ELECTRICAL CHARACTERISTICS (Ta=25°C, COUT=22μF, unless otherwise specified.) For UZ1085-ADJ (Adjustable) PARAMETER SYMBOL Reference Voltage VREF Line Regulation △VOUT Load Regulation Dropout Voltage Current Limit Adjust Pin Current △VOUT VD ILIMIT Iadj Adjust Pin Current Change △Iadj Minimum Load Current Quiescent Current IO(MIN) IQ Ripple Rejection Thermal Regulation Temperature Stability Long-Term Stability Output Noise(% of VOUT) Thermal Shutdown RR ΔVOUT ΔVOUT eN 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. TYP. MAX. UNIT 1.225 1.25 1.275 V 0.005 0.2 % 0.05 1.30 4 35 0.5 1.40 120 % V A μA 0.2 5 μA 4 10 13 mA mA 3.1 60 72 0.004 0.5 0.03 0.003 150 dB 0.02 1.0 %/W % % % °C 3 of 7 QW-R102-013,G UZ1085 LINEAR INTEGRATED CIRCUIT ELECTRICAL CHARACTERISTICS For UZ1085-xx (Fixed Voltage) PARAMETER SYMBOL UZ1085-15 UZ1085-18 Output Voltage VOUT UZ1085-25 UZ1085-33 UZ1085-50 △VOUT Line Regulation △VOUT Load Regulation Dropout Voltage VD Current Limit ILIMIT Minimum Load Current IO(MIN) Quiescent Current IQ Ripple Rejection Thermal Regulation Temperature Stability Long-Term Stability Output Noise(% of VOUT) Thermal shutdown RR 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 △VOUT △VOUT eN 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 TYP. 1.5 1.8 2.5 3.3 5.0 0.005 0.05 1.30 4 4 60 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 13 mA 72 0.004 0.5 0.03 0.003 150 dB 0.02 1.0 %/W % % % °C 4 of 7 QW-R102-013,G UZ1085 LINEAR INTEGRATED CIRCUIT TYPICAL APPLICATION CIRCUIT UNISONIC TECHNOLOGIES CO., LTD www.unisonic.com.tw 5 of 7 QW-R102-013,G UZ1085 LINEAR INTEGRATED CIRCUIT TYPICAL CHARACTERISTICS Figure 1. Absolute Maximum Sate Operating Area 4 Figure 2. Dropout Voltage vs.Output Current 1.5 1.4 1.3 3 1.2 1.1 1.0 2 0.9 T=25°C 0.8 1 0.7 0 10 0 50 0 0 0.10 2 4 6 8 10 15 0 12 0.6 0.5 14 0 1.5 1 0.5 2 2.5 VIN-VOUT (V) Output Current (A) Figure 3. Load Regulation vs. Temperature Figure 4. Reference Voltage vs. Temperature ΔI=3A 1.260 3.0 1.255 0.05 1.250 1.245 0 1.240 -0.05 1.235 1.230 -0.10 1.225 1.220 -0.15 1.215 -0.20 -75 -50 -25 3.70 0 25 50 75 100 125 150 175 1.210 -75 -50 -25 0 25 50 75 100 125 150 175 Junction Temperature (°C) Junction Temperature (°C) Figure 5. Output Voltage vs.Temperature Figure 6. Minimum Load Current vs.Temperature VOUT Set With 1% Resistors 3.65 5 VOUT=3.6V 4 3.60 3.55 UZ1085-ADJ 3 3.50 3.45 2 3.40 3.35 VOUT=3.3V 1 3.30 3.25 UZ1085-3.3 3.20 -75 -50 -25 0 25 50 75 100 125 150 175 Junction Temperature (°C) UNISONIC TECHNOLOGIES CO., LTD www.unisonic.com.tw 0 -75 -50 -25 0 25 50 75 100 125 150 175 Junction Temperature (°C) 6 of 7 QW-R102-013,G UZ1085 LINEAR INTEGRATED CIRCUIT TYPICAL CHARACTERISTICS(Cont.) 100 Figure 7. Adjust Pin Current vs.Temperature 5.0 UZ1085-ADJ 90 80 Short-Circuit Current (A) Adjust Pin Current (μA) Figure 8. Short-Circuit Current vs.Temperature 70 60 50 40 30 20 4.5 4.0 3.5 10 0 -75 -50 -25 0 25 3.0 -75 -50 -25 50 75 100 125 150 175 Junction Temperature (°C) 90 0 25 50 75 100 125 150 175 Junction Temperature (°C) Figure 9. Ripple Rejection vs.Frequency Figure 10. Maximum Power Dissipation 20 70 15 60 Power (W) Ripple Rejections (dB) 80 50 40 10 30 5 20 (VIN - VOUT)≤3V 10 0.5V≤VRIPPLE≤2V IOUT=3A 0 10 100 0 1k 10k 100k Frequency (Hz) 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,G