UZ1085_09

UNISONIC TECHNOLOGIES CO., LTD UZ1085 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. LINEAR INTEGRATED CIRCUIT 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 MARKING INFORMATION PACKAGE VOLTAGE CODE 15 :1.5V 18 :1.8V 25 :2.5V 33 :3.3V 50 :5.0V AD:ADJ LINEAR INTEGRATED CIRCUIT MARKING TO-220 TO-252 TO-263 TO-263-3 LOT Code Voltage Code UTC UZ1085 XX 1 2 3 L: Lead Free G: Halogen Free Date Code UNISONIC TECHNOLOGIES CO., LTD www.unisonic.com.tw 2 of 7 QW-R102-013,G UZ1085 ABSOLUTE MAXIMUM RATINGS LINEAR INTEGRATED CIRCUIT 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 TO-252 TO-220 TO-263 TO-252 TO-220 TO-263 SYMBOL θJA RATINGS 118 62 62 12 4 4 UNIT °C/W °C/W °C/W °C/W °C/W °C/W Junction to Case θJC ELECTRICAL CHARACTERISTICS (Ta=25°C, COUT=22μF, unless otherwise specified.) For UZ1085-ADJ (Adjustable) PARAMETER SYMBOL Reference Voltage Line Regulation Load Regulation Dropout Voltage Current Limit Adjust Pin Current Adjust Pin Current Change Minimum Load Current Quiescent Current Ripple Rejection Thermal Regulation Temperature Stability Long-Term Stability Output Noise(% of VOUT) Thermal Shutdown VREF △VOUT △VOUT VD ILIMIT Iadj △Iadj IO(MIN) IQ 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 MIN. 1.225 TYP. 1.25 0.005 0.05 1.30 4 35 0.2 4 60 72 0.004 0.5 0.03 0.003 150 0.02 1.0 MAX. 1.275 0.2 0.5 1.40 120 5 10 13 UNIT V % % V A μA μA mA mA dB %/W % % % °C 3.1 UNISONIC TECHNOLOGIES CO., LTD www.unisonic.com.tw 3 of 7 QW-R102-013,G UZ1085 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 LINEAR INTEGRATED CIRCUIT △VOUT △VOUT eN Ta=25°C,10Hz≤f≤10kHz 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 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 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 dB 0.02 1.0 %/W % % % °C 60 72 0.004 0.5 0.03 0.003 150 UNISONIC TECHNOLOGIES CO., LTD www.unisonic.com.tw 4 of 7 QW-R102-013,G UZ1085 TYPICAL APPLICATION CIRCUIT LINEAR INTEGRATED CIRCUIT UNISONIC TECHNOLOGIES CO., LTD www.unisonic.com.tw 5 of 7 QW-R102-013,G UZ1085 TYPICAL CHARACTERISTICS Figure 1. Absolute Maximum Sate Operating Area LINEAR INTEGRATED CIRCUIT 4 1.5 1.4 1.3 Figure 2. Dropout Voltage vs.Output Current 3 1.2 1.1 2 1.0 0.9 0.8 T=25°C 1 0 0 0 2 4 6 8 10 0 10 12 15 0 14 0.7 50 0.6 0.5 0 0.5 1 1.5 2 2.5 3.0 VIN-VOUT (V) Figure 3. Load Regulation vs. Temperature ΔI=3A Output Current (A) Figure 4. Reference Voltage vs. Temperature 0.10 0.05 1.260 1.255 1.250 1.245 1.240 0 -0.05 -0.10 -0.15 -0.20 -75 -50 -25 1.235 1.230 1.225 1.220 1.215 0 25 50 75 100 125 150 175 1.210 -75 -50 -25 0 25 50 75 100 125 150 175 Junction Temperature (°C) Figure 5. Output Voltage vs.Temperature VOUT Set With 1% Resistors VOUT=3.6V 4 UZ1085-ADJ 3 Junction Temperature (°C) Figure 6. Minimum Load Current vs.Temperature 3.70 3.65 3.60 3.55 3.50 3.45 3.40 3.35 3.30 3.25 5 2 VOUT=3.3V 1 UZ1085-3.3 0 25 50 75 100 125 150 175 0 -75 -50 -25 0 25 50 75 100 125 150 175 3.20 -75 -50 -25 Junction Temperature (°C) Junction Temperature (°C) UNISONIC TECHNOLOGIES CO., LTD www.unisonic.com.tw 6 of 7 QW-R102-013,G UZ1085 TYPICAL CHARACTERISTICS(Cont.) Figure 7. Adjust Pin Current vs.Temperature UZ1085-ADJ LINEAR INTEGRATED CIRCUIT 100 90 5.0 Figure 8. Short-Circuit Current vs.Temperature Short-Circuit Current (A) Adjust Pin Current (μA) 80 70 60 50 40 30 20 10 0 -75 -50 -25 0 25 50 75 100 125 150 175 4.5 4.0 3.5 3.0 -75 -50 -25 0 25 50 75 100 125 150 175 Junction Temperature (°C) Figure 9. Ripple Rejection vs.Frequency Junction Temperature (°C) Figure 10. Maximum Power Dissipation 20 90 80 Ripple Rejections (dB) 70 60 50 40 30 20 (VIN - VOUT)≤3V 10 0.5V≤VRIPPLE≤2V IOUT=3A 0 10 100 15 Power (W) 10 5 0 1k 10k 100k 0 50 60 70 10 0 15 0 50 80 90 100 110 120 130 140 150 Frequency (Hz) 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