UNISONIC TECHNOLOGIES CO., LTD UZ1085 LINEAR INTEGRATED CIRCUIT 3A ADJUSTABLE/FIXED LOW DROPOUT LINEAR REGULATOR 1 1 TO-252 TO-220 DESCRIPTION The 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 1 1 TO-263 TO-263-3 *Pb-free plating product number: UZ1085L-xx *Fast transient response *Low dropout voltage at up to 3A *Load regulation:0.05% typical *Trimmed current limit *On-chip thermal limiting ORDERING INFORMATION Order Number Normal Lead Free Plating UZ1085-xx-TA3-A-T UZ1085L-xx-TA3-A-T UZ1085-xx-TN3-A-R UZ1085L-xx-TN3-A-R UZ1085-xx-TN3-A-T UZ1085L-xx-TN3-A-T UZ1085-xx-TQ2-A-R UZ1085L-xx-TQ2-A-R UZ1085-xx-TQ2-A-T UZ1085L-xx-TQ2-A-T UZ1085-xx-TQ3-A-R UZ1085L-xx-TQ3-A-R UZ1085-xx-TQ3-A-T UZ1085L-xx-TQ3-A-T Package TO-220 TO-252 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 A/G O I Packing Tube Tape Reel Tube 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) UZ1085L-xx-TA3-A-T (1)Packing Type (2)Pin Assignment (3)Package Type (4)Output Voltage Code (5)Lead Plating www.unisonic.com.tw Copyright © 2005 Unisonic Technologies Co., Ltd (1) R: Tape Reel, T: Tube (2) refer to Pin Assignment (3) TA3: TO-220, TN3: TO-252, TQ2: TO-263, TQ 3: TO-263-3 (4) xx: refer to Marking Information (5) L: Lead Free Plating, Blank: Pb/Sn 1 of 6 QW-R102-013,D UZ1085 LINEAR INTEGRATED CIRCUIT MARKING INFORMATION PACKAGE TO-220 TO-252 TO-263 TO-263-3 VOLTAGE CODE 15 18 25 33 50 AD MARKING :1.5V :1.8V :2.5V :3.3V :5.0V :ADJ UTC UZ1085 Lead Plating Pin Code Voltage Code Date Code 1 2 3 THERMAL DATA PARAMETER SYMBOL RATINGS 12 UNIT ΘJC 4 °C/W TO-252 Thermal Resistance Junction-Case TO-220 TO-263 UNISONIC TECHNOLOGIES CO., LTD www.unisonic.com.tw 4 2 of 6 QW-R102-013,D 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 ℃ Operating Temperature TOPR -20 ~ +85 ℃ Storage Temperature TSTG -40 ~ +150 Note 1. 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. 2. The device is guaranteed to meet performance specification within 0℃~+70℃ operating temperature range and assured by design from -20℃~+85℃. ELECTRICAL CHARACTERISTICS (Ta=25℃, COUT=22μF, unless otherwise specified.) For UZ1085-ADJ(Adjustable) PARAMETER Reference Voltage SYMBOL 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 ∆VOUT ∆VOUT 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℃,30ms pulse 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 Ta=125℃, 1000hr Ta=25℃,10Hz≦f≦10kHz dB 0.02 1.0 %/W % % % °C For UZ1085-xx(Fixed Voltage) PARAMETER SYMBOL TEST CONDITIONS 3.0V≤VIN≤8.5V, 10mA≤IOUT≤3A UZ1085-15 3.3V≤VIN≤8.8V, 10mA≤IOUT≤3A UZ1085-18 Output Voltage VOUT 4.0V≤VIN≤9.5V, 10mA≤IOUT≤3A UZ1085-25 4.8V≦VIN≦10.3V, 10mA≦IOUT≦3A UZ1085-33 6.5V≦V UZ1085-50 IN≦12V, 10mA≦IOUT≦3A Line Regulation ∆VOUT (VOUT +1.5V)≦VIN≦12V,IOUT=10mA Load Regulation ∆VOUT (VIN – VOUT)=3V, 10mA≦IOUT≦3A △VREF%=1%, lOUT=3A Dropout Voltage VD Current Limit ILIMIT (VIN-VOUT)=2V Minimum Load Current ∆Iadj 1.5V≦(VIN-VOUT)≦12V Quiescent Current IQ VIN=12V f=120Hz, Tantalum, Ripple Rejection RR (VIN – VOUT)=3V,IOUT=3A Ta=25℃,30ms pulse Thermal Regulation Temperature Stability ∆VOUT Ta=125℃, 1000hr Long-Term Stability ∆VOUT Ta=25℃,10Hz≦f≦10kHz Output Noise(% of VOUT) eN Thermal shutdown UNISONIC TECHNOLOGIES CO., LTD www.unisonic.com.tw MIN. TYP. MAX. UNIT 1.470 1.5 1.530 1.764 1.8 1.830 V 2.450 2.5 2.550 3.234 3.3 3.366 4.900 5.0 5.100 0.005 0.2 % 0.05 0.5 % 1.30 1.40 V 3.1 4 A 10 mA 4 13 mA 60 72 0.004 0.5 0.03 0.003 150 dB 0.02 1.0 %/W % % % °C 3 of 6 QW-R102-013,D UZ1085 LINEAR INTEGRATED CIRCUIT TYPICAL APPLICATION CIRCUIT UZ1085-ADJ VOUT VIN VIN=12V 22μF ADJ + VOUT=V REF(1+R2/R1)+IADJ*R2 VIN=9V 22μF VIN + R1 124Ω GND + 22μF R2 768Ω UZ1085-3.3 V OUT UNISONIC TECHNOLOGIES CO., LTD www.unisonic.com.tw 9V at 3A 3.3V at 3A + 22μF 4 of 6 QW-R102-013,D UZ1085 LINEAR INTEGRATED CIRCUIT 4 1.5 3 1.4 1. 3 1. 2 1.1 Dropout Voltage (V) IOUT (Amps) TYPICAL CHARACTERISTICS 2 1 1.0 T=0℃ 0.9 0.7 0 10 0 50 0 0 2 4 6 8 10 15 0 12 0.6 0.5 14 0 0.5 1 3.0 1.255 0.05 Reference Voltage (V) Output Voltage Deviation (%) 2.5 1.260 △I=3A 0 -0.05 -0.10 1.250 1.245 1.240 1.235 1.230 1.225 1.220 -0.15 1.215 -0.20 -75 -50 -25 0 1.210 -75 -50 -25 25 50 75 100 125 150175 Junction Temperature (℃) 25 50 75 100 125 150 175 Figure 4. Reference Voltage vs.Temperature 5 VOUT Set With 1% Resistors 3.65 0 Junction Temperature (℃) Figure 3. Load Regulation vs.Temperature VOUT=3.6V 3.60 3.55 UZ1085-ADJ 3.50 3.45 3.40 3.35 VOUT=3.3V 3.30 3.25 Minmum Load Current (mA) Reference Voltage (V) 2 Figure 2. Dropout Voltage vs.Output Current Figure 1. Absolute Maximum Sate Operating Area 3.70 1.5 Output Current (A) VIN-VOUT (V) 0.10 T=125℃ T=25℃ 0.8 4 3 2 1 UZ1085-3.3 3.20 -75 -50 -25 0 25 50 75 100 125 150 175 Junction Temperature (℃) Figure 5. Output Voltage vs.Temperature UNISONIC TECHNOLOGIES CO., LTD www.unisonic.com.tw 0 -75 -50 -25 0 25 50 75 100 125 150 175 Junction Temperature (℃) Figure 6. Minimum Load Current vs.Temperature 5 of 6 QW-R102-013,D UZ1085 LINEAR INTEGRATED CIRCUIT TYPICAL CHARACTERISTICS(Cont.) 100 5.0 UZ1085-ADJ 90 Short-Circuit Current (A) 80 Adjust Pin Current (¦ÌA) 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 (℃) 0 25 50 75 100 125 150 175 Junction Temperature (℃) Figure 7. Adjust Pin Current vs.Temperature Figure 8. Short-Circuit Current vs.Temperature 90 20 70 15 60 Power (W) Ripple Rejections (dB) 80 50 40 10 30 5 20 10 0 10 (VIN - VOUT)≦3V 0.5V≦VRIPPLE ≦2V IOUT=3A 100 10k 1k Frequency (Hz) 100k Figure 9. Ripple Rejection vs.Frequency 10 15 0 50 0 0 0 50 60 70 80 90 100 110 120 130 140 150 Case Temperature (℃) Figure 10. Maximum Power Dissipation 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-R102-013,D