Data Sheet 3A LOW DROPOUT LINEAR REGULATOR AZ1085 General Description Features The AZ1085 is a series of low dropout positive voltage regulators with a maximum dropout of 1.5V at 3A of load current. · · · · · · · The series features on-chip thermal shutdown. It also includes a bandgap reference and a current limiting circuit. The AZ1085 is available in 1.5V, 1.8V, 2.5V, 2.85V, 3.3V, 5.0V and adjustable versions. The fixed versions integrate the adjust resistors. The adjustable version can set the output voltage with two external resistors. Applications · · · · · · · · The AZ1085 series is available in standard packages of TO-263-2L, TO-263-3L, TO-220 and TO-252. TO-263-3L Low Dropout Voltage: Typical 1.3V at 3A Current Limiting and Thermal Protection Output Current: 3A Current Limit: 4.5A Operating Junction Temperature: 0 to 125oC Line Regulation: 0.015% (Typical) Load Regulation: 0.1% (Typical) TO-263-2L High Efficiency Linear Regulators Battery Charger Post Regulation for Switching Supplies Microprocessor Supply Mother Board Power Supplies DVD - Video Player Telecom Equipment Set Top boxes and Web Boxes Modules' Supply TO-252 TO-220 Figure 1. Package Types of AZ1085 BCD Semiconductor Manufacturing Limited Apr. 2005 Rev. 1. 1 1 Data Sheet 3A LOW DROPOUT LINEAR REGULATOR AZ1085 Pin Configuration T Package (TO-220) D Package (TO-252) 3 INPUT 2 OUTPUT 1 ADJ/GND 3 INPUT 2 OUTPUT 1 ADJ/GND S Package S Package (TO-263-3L) (TO-263-2L) 3 INPUT 3 INPUT 2 OUTPUT 2 OUTPUT (TAB) 1 ADJ/GND 1 ADJ/GND Figure 2. Pin Configuration of AZ1085 (Top View) Functional Block Diagram INPUT Thermal Protection + OUTPUT A1 A2 For Adjustable Output, disconnect A1 and A2, connect B For Fixed Output, connect A1 and A2, disconnect B B ADJ/ GND Figure 3. Functional Block Diagram of AZ1085 BCD Semiconductor Manufacturing Limited Apr. 2005 Rev. 1. 1 2 Data Sheet 3A LOW DROPOUT LINEAR REGULATOR AZ1085 Ordering Information AZ1085 E1: Lead Free Blank: Tin Lead Circuit Type TR: Tape and Reel Blank: Tube ADJ: Adjustable Output 1.5: Fixed Output 1.5V 1.8: Fixed Output 1.8V 2.5: Fixed Output 2.5V 2.85: Fixed Output 2.85V 3.3: Fixed Output 3.3V 5.0: Fixed Output 5.0V Package D: TO-252 T: TO-220 S: TO-263-3L S2: TO-263-2L Package TO-252 TO-220 Temperature Range 0 to 125oC o 0 to 125 C Part Number Tin Lead Marking ID Lead Free Tin Lead Lead Free Packing Type AZ1085D-ADJ AZ1085D-ADJE1 AZ1085D-ADJ AZ1085D-ADJE1 Tube AZ1085D-ADJTR AZ1085D-ADJTRE1 AZ1085D-ADJ AZ1085D-ADJE1 Tape & Reel AZ1085D-1.5 AZ1085D-1.5E1 AZ1085D-1.5 AZ1085D-1.5E1 Tube AZ1085D-1.5TR AZ1085D-1.5TRE1 AZ1085D-1.5 AZ1085D-1.5E1 Tape & Reel AZ1085D-1.8 AZ1085D-1.8E1 AZ1085D-1.8 AZ1085D-1.8E1 Tube AZ1085D-1.8TR AZ1085D-1.8TRE1 AZ1085D-1.8 AZ1085D-1.8E1 Tape & Reel AZ1085D-2.5 AZ1085D-2.5E1 AZ1085D-2.5 AZ1085D-2.5E1 Tube AZ1085D-2.5TR AZ1085D-2.5TRE1 AZ1085D-2.5 AZ1085D-2.5E1 Tape & Reel AZ1085D-2.85 AZ1085D-2.85E1 AZ1085D-2.85 AZ1085D-2.85E1 Tube AZ1085D-2.85TR AZ1085D-2.85TRE1 AZ1085D-2.85 AZ1085D-2.85E1 Tape & Reel AZ1085D-3.3 AZ1085D-3.3E1 AZ1085D-3.3 AZ1085D-3.3E1 Tube AZ1085D-3.3TR AZ1085D-3.3TRE1 AZ1085D-3.3 AZ1085D-3.3E1 Tape & Reel AZ1085D-5.0 AZ1085D-5.0E1 AZ1085D-5.0 AZ1085D-5.0E1 Tube AZ1085D-5.0TR AZ1085D-5.0TRE1 AZ1085D-5.0 AZ1085D-5.0E1 Tape & Reel AZ1085T-ADJ AZ1085T-ADJE1 AZ1085T-ADJ AZ1085T-ADJE1 Tube AZ1085T-1.5 AZ1085T-1.5E1 AZ1085T-1.5 AZ1085T-1.5E1 Tube AZ1085T-1.8 AZ1085T-1.8E1 AZ1085T-1.8 AZ1085T-1.8E1 Tube AZ1085T-2.5 AZ1085T-2.5E1 AZ1085T-2.5 AZ1085T-2.5E1 Tube AZ1085T-2.85 AZ1085T-2.85E1 AZ1085T-2.85 AZ1085T-2.85E1 Tube AZ1085T-3.3 AZ1085T-3.3E1 AZ1085T-3.3 AZ1085T-3.3E1 Tube AZ1085T-5.0 AZ1085T-5.0E1 AZ1085T-5.0 AZ1085T-5.0E1 Tube BCD Semiconductor Manufacturing Limited Apr. 2005 Rev. 1. 1 3 Data Sheet 3A LOW DROPOUT LINEAR REGULATOR AZ1085 Ordering Information (Continued) Package TO-263-3L TO-263-2L Temperature Range 0 to 125oC 0 to 125oC Part Number Tin Lead Marking ID Lead Free Tin Lead Lead Free Packing Type AZ1085S-ADJ AZ1085S-ADJE1 AZ1085S-ADJ AZ1085S-ADJE1 Tube AZ1085S-ADJTR AZ1085S-ADJTRE1 AZ1085S-ADJ AZ1085S-ADJE1 Tape & Reel AZ1085S-1.5 AZ1085S-1.5E1 AZ1085S-1.5 AZ1085S-1.5E1 Tube AZ1085S-1.5TR AZ1085S-1.5TRE1 AZ1085S-1.5 AZ1085S-1.5E1 Tape & Reel AZ1085S-1.8 AZ1085S-1.8E1 AZ1085S-1.8 AZ1085S-1.8E1 Tube AZ1085S-1.8TR AZ1085S-1.8TRE1 AZ1085S-1.8 AZ1085S-1.8E1 Tape & Reel AZ1085S-2.5 AZ1085S-2.5E1 AZ1085S-2.5 AZ1085S-2.5E1 Tube AZ1085S-2.5TR AZ1085S-2.5TRE1 AZ1085S-2.5 AZ1085S-2.5E1 Tape & Reel AZ1085S-2.85 AZ1085S-2.85E1 AZ1085S-2.85 AZ1085S-2.85E1 Tube AZ1085S-2.85TR AZ1085S-2.85TRE1 AZ1085S-2.85 AZ1085S-2.85E1 Tape & Reel AZ1085S-3.3 AZ1085S-3.3E1 AZ1085S-3.3 AZ1085S-3.3E1 Tube AZ1085S-3.3TR AZ1085S-3.3TRE1 AZ1085S-3.3 AZ1085S-3.3E1 Tape & Reel AZ1085S-5.0 AZ1085S-5.0E1 AZ1085S-5.0 AZ1085S-5.0E1 Tube AZ1085S-5.0TR AZ1085S-5.0TRE1 AZ1085S-5.0 AZ1085S-5.0E1 Tape & Reel AZ1085S2-ADJ AZ1085S2-ADJE1 AZ1085S2-ADJ AZ1085S2-ADJE1 Tube AZ1085S2-ADJTR AZ1085S2-ADJTRE1 AZ1085S2-ADJ AZ1085S2-ADJE1 Tape & Reel AZ1085S2-1.5 AZ1085S2-1.5E1 AZ1085S2-1.5 AZ1085S2-1.5E1 Tube AZ1085S2-1.5TR AZ1085S2-1.5TRE1 AZ1085S2-1.5 AZ1085S2-1.5E1 Tape & Reel AZ1085S2-1.8 AZ1085S2-1.8E1 AZ1085S2-1.8 AZ1085S2-1.8E1 Tube AZ1085S2-1.8TR AZ1085S2-1.8TRE1 AZ1085S2-1.8 AZ1085S2-1.8E1 Tape & Reel AZ1085S2-2.5 AZ1085S2-2.5E1 AZ1085S2-2.5 AZ1085S2-2.5E1 Tube AZ1085S2-2.5TR AZ1085S2-2.5TRE1 AZ1085S2-2.5 AZ1085S2-2.5E1 Tape & Reel AZ1085S2-2.85 AZ1085S2-2.85E1 AZ1085S2-2.85 AZ1085S2-2.85E1 Tube AZ1085S2-2.85TR AZ1085S2-2.85TRE1 AZ1085S2-2.85 AZ1085S2-2.85E1 Tape & Reel AZ1085S2-3.3 AZ1085S2-3.3E1 AZ1085S2-3.3 AZ1085S2-3.3E1 Tube AZ1085S2-3.3TR AZ1085S2-3.3TRE1 AZ1085S2-3.3 AZ1085S2-3.3E1 Tape & Reel AZ1085S2-5.0 AZ1085S2-5.0E1 AZ1085S2-5.0 AZ1085S2-5.0E1 Tube AZ1085S2-5.0TR AZ1085S2-5.0TRE1 AZ1085S2-5.0 AZ1085S2-5.0E1 Tape & Reel BCD Semiconductor's Pb-free products, as designated with "E1" suffix in the part number, are RoHS compliant. BCD Semiconductor Manufacturing Limited Apr. 2005 Rev. 1. 1 4 Data Sheet 3A LOW DROPOUT LINEAR REGULATOR AZ1085 Absolute Maximum Ratings (Note 1) Parameter Symbol Max Unit 150 oC 150 o TLEAD 300 o ESD 2000 Operating Junction Temperature TJ Storage Temperature TS Lead Temperature (Soldering, 10 sec.) ESD (Human Body Model) Min -65 C C V Note 1: Stresses greater than those listed under "Absolute Maximum Ratings" may cause permanent damage to the device. These are stress ratings only, and functional operation of the device at these or any other conditions beyond those indicated under"Recommended Operating Conditions" is not implied. Exposure to "Absolute Maximum Ratings" for extended periods may affect device reliability. Recommended Operating Conditions Parameter Input Voltage Operating Junction Temperature Range Symbol Min VIN 0 TJ Max Unit 12 V 125 o C BCD Semiconductor Manufacturing Limited Apr. 2005 Rev. 1. 1 5 Data Sheet 3A LOW DROPOUT LINEAR REGULATOR AZ1085 Electrical Characteristics Typicals and limits appearing in normal type apply for TJ = 25oC. Limits appearing in Boldface type apply over the entire operating junction temperature range 0 to 125oC. Parameter Reference Voltage Output Voltage Line Regulation Symbol VREF VOUT ∆VOUT Conditions Min Typ Max Unit AZ1085-ADJ, IOUT=10mA,VIN -VOUT = 3V, TJ = 25oC, 10mA ≤ IOUT ≤ 3A, 1.5V ≤ VIN - VOUT ≤ 5V 1.238 1.225 1.250 1.250 1.262 1.275 V AZ1085-1.5, IOUT =0mA, VIN = 4.5V, TJ = 25oC, 10mA ≤ IOUT ≤ 3A, 3.1V ≤ VIN ≤ 6V 1.485 1.47 1.5 1.5 1.515 1.53 V AZ1085-1.8, IOUT = 0mA, VIN = 4.8V, TJ = 25oC, 10mA ≤ IOUT ≤ 3A, 3.4V ≤ VIN ≤ 7V 1.782 1.764 1.8 1.8 1.818 1.836 V AZ1085-2.5, IOUT = 0mA, VIN = 5.5V, TJ = 25oC, 10mA ≤ IOUT ≤ 3A, 4.1V ≤ VIN ≤ 7V 2.475 2.45 2.5 2.5 2.525 2.55 V AZ1085-2.85, IOUT = 0mA, VIN = 6V, TJ = 25oC, 10mA ≤ IOUT ≤ 3A, 4.5V ≤ VIN ≤ 8V 2.821 2.793 2.85 2.85 2.879 2.907 V AZ1085-3.3, IOUT = 0mA, VIN = 6.3V, TJ = 25oC, 10mA ≤ IOUT ≤ 3A, 4.9V ≤ VIN ≤ 8V 3.267 3.234 3.3 3.3 3.333 3.366 V AZ1085-5.0, IOUT = 0mA, VIN = 8V, TJ = 25oC, 10mA ≤ IOUT ≤ 3A, 6.6V ≤ VIN ≤ 10V 4.95 4.9 5 5 5.05 5.1 V AZ1085-ADJ, IOUT = 10mA, 2.85V ≤ VIN ≤ 10V 0.015 0.035 0.2 0.2 % AZ1085-1.5, IOUT = 10mA, 3.1V ≤ VIN ≤ 10V 0.5 1 6 6 mV AZ1085-1.8, IOUT = 10mA, 3.4V ≤ VIN ≤ 10V 0.5 1 6 6 mV AZ1085-2.5, IOUT = 10mA, 4.1V ≤ VIN ≤ 10V 0.5 1 6 6 mV AZ1085-2.85, IOUT = 10mA, 4.5V ≤ VIN ≤ 10V 0.5 1 6 6 mV AZ1085-3.3, IOUT = 10mA, 4.9V ≤ VIN ≤ 10V 0.5 1 6 6 mV BCD Semiconductor Manufacturing Limited Apr. 2005 Rev. 1. 1 6 Data Sheet 3A LOW DROPOUT LINEAR REGULATOR AZ1085 Electrical Characteristics (Continued) Typicals and limits appearing in normal type apply for TJ = 25oC. Limits appearing in Boldface type apply over the entire operating junction temperature range 0 to 125oC. Parameter Load Regulation Symbol ∆VOUT Min ILIMIT Typ Max Unit AZ1085-5.0, IOUT = 10mA, 6.6V ≤ VIN ≤ 10V 0.5 1 10 10 mV AZ1085-ADJ, 0mA ≤ IOUT ≤ 3A, VIN - VOUT = 3V 0.1 0.2 0.3 0.4 % AZ1085-1.5, 0mA ≤ IOUT ≤ 3A, VIN - VOUT = 3V 3 7 15 20 mV AZ1085-1.8, 0mA ≤ IOUT ≤ 3A, VIN - VOUT = 3V 3 7 15 20 mV AZ1085-2.5, 0mA ≤ IOUT ≤ 3A, VIN - VOUT = 3V 3 7 15 20 mV AZ1085-2.85, 0mA ≤ IOUT ≤ 3A, VIN - VOUT = 3V 3 7 15 20 mV AZ1085-3.3, 0mA ≤ IOUT ≤ 3A, VIN - VOUT = 3V 3 7 15 20 mV AZ1085-5.0, 0mA ≤ IOUT ≤ 3A, VIN - VOUT = 3V 5 10 20 35 mV 1.3 1.5 V IO = 3A, ∆VREF, ∆VOUT = 1% Dropout Voltage Current Limit Conditions VIN - VOUT = 3V, 3.2 4.5 A Minimum Load Current VIN = 10V (AZ1085-ADJ) 3 10 mA Quiescent Current VIN = 10V (AZ1085) 5 10 mA Ripple Rejection fRIPPLE = 120Hz, COUT = 25µF Tantalum, IOUT = 3A, VIN - VOUT = 3V Adjust Pin Current VIN = 4.25V, IOUT = 10mA 55 120 µA Adjust Pin Current Change 10mA ≤ IOUT ≤ 3A, 1.5V ≤ VIN -VOUT ≤ 6V 0.2 5 µA Long Term Stability TA = 125oC, 1000Hrs 0.5 % Temperature Stability IOUT = 10mA, VIN - VOUT = 1.5V 0.5 % RMS Noise (% of VOUT) TA = 25oC, 10Hz ≤ f ≤ 10kHz 0.003 % Thermal Resistance Junction-to-Case θJC TO-263 TO-220 60 72 3 3 dB oC /W BCD Semiconductor Manufacturing Limited Apr. 2005 Rev. 1. 1 7 Data Sheet 3A LOW DROPOUT LINEAR REGULATOR AZ1085 Typical Performance Characteristics 5 5 4 Load Regulation (mV) Line Regulation (mV) 4 3 2 1 3 2 1 0 -1 -2 -3 0 -4 -1 -5 0 25 50 75 100 125 0 25 50 75 100 125 o o TA ( C) TA ( C) Figure 5. Load Regulation vs. Temperature Figure 4. Line Regulation vs. Temperature 1.20 2.53 Output Voltage (V) Dropout Voltage (V) 2.52 1.15 1.10 2.51 2.50 2.49 1.05 2.48 1.00 2.47 0 25 50 75 100 125 0 25 50 75 100 125 o TA ( C) o TA( C) Figure 6. Dropout Voltage vs. Temperature Figure 7. Output Voltage vs. Temperature BCD Semiconductor Manufacturing Limited Apr. 2005 Rev. 1. 1 8 Data Sheet 3A LOW DROPOUT LINEAR REGULATOR AZ1085 Typical Performance Characteristics (Continued) 7 1.30 1.25 1.20 Dropout Voltage (V) Short Circuit Current (A) 6 5 4 3 1.15 1.10 1.05 1.00 0.95 2 0.90 1 0.85 0 0 2 4 6 8 10 0.80 0.0 12 Dropout Voltage (V) 0.5 1.0 1.5 2.0 2.5 3.0 Output Current (A) Figure 8. Short Circuit Current vs. Dropout Voltage Figure 9. Dropout Voltage vs. Output Current 1.28 Reference Voltage (V) 1.27 1.26 1.25 1.24 1.23 1.22 1.21 1.20 0 25 50 75 100 125 o TA ( C) Figure 11. Load Transient Response Figure10. Reference Voltage vs. Temperature BCD Semiconductor Manufacturing Limited Apr. 2005 Rev. 1. 1 9 Data Sheet 3A LOW DROPOUT LINEAR REGULATOR AZ1085 Typical Performance Characteristics (Continued) Figure 12. Line Transient Response BCD Semiconductor Manufacturing Limited Apr. 2005 Rev. 1. 1 10 Data Sheet 3A LOW DROPOUT LINEAR REGULATOR AZ1085 Typical Application VIN + 10µF Tantalum ADJ + 22µF Tantalum R1 120Ω VOUT=VREF* (1+R2/R1) + IADJ * R2 R2 AZ1085-5.0 VIN 10µF Tantalum VOUT AZ1085-ADJ VOUT VIN + VIN GND VOUT VOUT + 22µF Tantalum Figure 13. Typical Applications of AZ1085 BCD Semiconductor Manufacturing Limited Apr. 2005 Rev. 1. 1 11 Data Sheet 3A LOW DROPOUT LINEAR REGULATOR AZ1085 Mechanical Dimensions TO-220 2.580(0.102) 3.380(0.133) 0.550(0.022) 1.350(0.053) 1.160(0.046) 1.760(0.069) 14.230(0.560) 16.510(0.650) φ1.500(0.059) 27.880(1.098) 30.280(1.192) 8.520(0.335) 9.520(0.375) 1.850(0.073) 9.660(0.380) 10.660(0.420) φ3.560(0.140) 4.060(0.160) Unit: mm(inch) 3° 0.200(0.008) 7° 3.560(0.140) 4.820(0.190) 2.080(0.082) 2.880(0.113) 7° 0.381(0.015) 60° 0.813(0.032) 8.763(0.345) 60° 0.381(0.015) 2.540(0.100) 2.540(0.100) 0.356(0.014) 0.406(0.016) BCD Semiconductor Manufacturing Limited Apr. 2005 Rev. 1. 1 12 Data Sheet 3A LOW DROPOUT LINEAR REGULATOR AZ1085 Mechanical Dimensions (Continued) TO-263-3L 4.070(0.160) 4.820(0.190) Unit: mm(inch) 3° 9.650(0.380) 10.290(0.405) 8.840(0.348) 7.420(0.292) 1.150(0.045) 1.390(0.055) 1.270(0.050) 1.390(0.055) 70° 14.760(0.581) 15.740(0.620) 1.150(0.045) 1.390(0.055) 3° 0.510(0.020) 0.990(0.039) 2.540(0.100) 2.540(0.100) 2.640(0.104) 2.700(0.106) 0.360(0.014) 0.400(0.016) 7° 2.200(0.087) 5.600(0.220) 0.020(0.001) 0.250(0.010) 2.390(0.094) 2.690(0.106) 8.640(0.340) 9.650(0.380) 7° 7.980(0.314) 2° 8° 0.380(0.015) 2.540(0.100) 0° 6° 2.540(0.100) BCD Semiconductor Manufacturing Limited Apr. 2005 Rev. 1. 1 13 Data Sheet 3A LOW DROPOUT LINEAR REGULATOR AZ1085 Mechanical Dimensions (Continued) TO-263-2L 4.070(0.160) 4.820(0.190) 9.650(0.380) 10.290(0.405) 8.840(0.348) 70° Unit: mm(inch) 3° 1.150(0.045) 1.390(0.055) 1.270(0.050) 1.390(0.055) 7.420(0.292) 0.020(0.001) 0.250(0.010) 2.540(0.100) 1.150(0.045) 1.390(0.055) 2.390(0.094) 2.690(0.106) 1.500(0.059) 14.760(0.581) 15.740(0.620) 3° 2.640(0.104) 2.700(0.106) 0.360(0.014) 0.400(0.016) 7° 2.200(0.087) 5.600(0.220) 8.640(0.340) 9.650(0.380) 7° 7.980(0.314) 2° 8° 0.510(0.020) 0.990(0.039) 0.380(0.015) 2.540(0.100) 2.540(0.100) 0° 6° 2.540(0.100) BCD Semiconductor Manufacturing Limited Apr. 2005 Rev. 1. 1 14 Data Sheet 3A LOW DROPOUT LINEAR REGULATOR AZ1085 Mechanical Dimensions (Continued) TO-252 2.180(0.086) 2.380(0.094) 0.460(0.018) 0.580(0.023) 1.080(0.043) 1.320(0.052) 2.240(0.088) 2.340(0.092) 2.90° 3.10° 5° 0.600(0.024) 1.400(0.055) 1.760(0.069) 0.640(0.025) 0.780(0.031) 8° 5.360(0.211) 5.560(0.219) 0.480(0.019) 0.540(0.021) 0.020(0.001) 0.120(0.005) 5° 0.750(0.030) 0.850(0.033) 2.240(0.088) 2.340(0.092) 0.400(0.016)×45° 1° 7° 0.510(0.020) 2.600(0.102) 3.000(0.118) 9.500(0.374) 10.100(0.398) 0.650(0.026) 0.950(0.037) 5.230(0.206) 5.430(0.214) 6.380(0.251) 6.680(0.263) Unit: mm(inch) 2.90° 3.10° BCD Semiconductor Manufacturing Limited Apr. 2005 Rev. 1. 1 15 http://www.bcdsemi.com BCD Semiconductor Corporation 3170 De La Cruz Blvd, Suite # 105 Santa Clara, CA 95054-2411, U.S.A Tel: +1-408-988 6388, Fax: +1-408-988 6386 Shanghai SIM-BCD Semiconductor Manufacturing Co., Ltd. 800 Yi Shan Road, Shanghai 200233, PRC Tel: +86-21-6485-1491, Fax: +86-21-5450-0008 Advanced Analog Circuits (Shanghai) Corporation 8F, B Zone, 900 Yi Shan Road, Shanghai 200233, PRC Tel: +86-21-6495 9539, Fax: +86-21-6485 9673 BCD Semiconductor (Taiwan) Company Limited Room 2210, 22nd Fl, 333, Keelung Road, Sec. 1, TaiPei (110), Taiwan Tel: +886-2-2758 6828, Fax: +886-2-2758 6892 IMPORTANT NOTICE BCD Semiconductor Manufacturing Limited reserves the right to make changes without further notice to any products or specifications herein. BCD Semiconductor Manufacturing Limited does not assume any responsibility for use of any its products for any particular purpose, nor does BCD Semiconductor Manufacturing Limited assume any liability arising out of the application or use of any its products or circuits. BCD Semiconductor Manufacturing Limited does not convey any license under its patent rights or other rights nor the rights of others.