AME, Inc. AME1505 n General Description The AME1505 is a 5A low-dropout positive voltage regulator. The dropout voltage of AME1505 is 750mV at maximum output current. The output voltage is preset at factory. It is available in fixed and adjustable output voltage versions. The fixed voltage range could expand from 1.25V to 3.7V, where 5V and 3.3V voltage supplies are available. AME1505 has 2 new features: First, a remote Sense pin is wired out to eliminate output voltage variation due to load changes. Secondly, an extra Control pin is available to effectively decrease Vin to Vo drop. It greatly improves the power dissipation. High Power BiPolar Linear LDO n Functional Block Diagram VCONTROL VPOWER Current Limiting Amplifier Output Thermal Protection Overcurrent and thermal protection are integrated onto the chip. Output current will limit as it reaches the preset current. AME1505 series have excellent regulation over line, load and temperature variations. Sense Error Amp. n Features Bandgap Reference ADJ/GND l Low dropout voltage --- 750mV at 5A l Adjustable or 1.25~3.7V fixed voltage l Line regulation 3 mV maximum l Load regulation 7mV maximum l Adjust pin (ADJ) current less than 120µA n Typical Application l Dual voltage supplies is recommended l Overcurrent protection l Available in TO-220-5, TO-263-5 3.3V V power 5.0V ADJ VSENSE VREF l VGA Card Supplies 100 ohm l Post Regulators for Switching Supplies l Microprocessor Supply 2.5V AME1505 V control n Applications VOUT 100 ohm GND l Chipset Supplies l LCD Monitor Power 1 AME, Inc. AME1505 High Power BiPolar Linear LDO n Pin Configuration TO-263-5 Front View AME1505 TO-220-5 Front View AME 1505 AME 1505 1. SENSE 1. SENSE 2. ADJ / GND 2. ADJ / GND 3. OUTPUT AMExxxx AME1505 4. VCONTROL 5. VPOWER 1 2 3 4 3. OUTPUT 4. VCONTROL 5. VPOWER 5 1 2 3 4 5 n Ordering Information AME1505 x x x x x x Special Feature Voltage Number of Pins Package Type Operating Temperature Range Product Grade or Option Product Grade or Option A (TO-263) A (TO-220) 2 1. SENSE 2. ADJ/GND 3. Output 4. VCONTROL 5. VPOWER 1. SENSE 2. ADJ/GND 3. Output 4. VCONTROL 5. VPOWER Operating Temperature Range C: 0OC to 70OC Package Type B: TO-220 D: TO-263 Number of Pins V: 5 Voltage ADJ: 150: 250: 330: ADJ 1.5V 2.5V 3.3V Special Feature Z: Lead Free AME, Inc. AME1505 High Power BiPolar Linear LDO n Ordering Information (contd.) Part Number AME1505ACBVADJ AME1505ACBVADJZ AME1505ACBV150 AME1505ACBV150Z AME1505ACBV250 AME1505ACBV250Z AME1505ACBV330 AME1505ACBV330Z AME1505ACDVADJ AME1505ACDVADJZ AME1505ACDV150 AME1505ACDV150Z Marking* AME1505 ACBVADJ yyww AME1505 ACBVADJ yyww AME1505 ACBV150 yyww AME1505 ACBV150 yyww AME1505 ACBV250 yyww AME1505 ACBV250 yyww AME1505 ACBV330 yyww AME1505 ACBV330 yyww AME1505 ACDVADJ yyww AME1505 ACDVADJ yyww AME1505 ACDV150 yyww AME1505 ACDV150 yyww Output Voltage Package Operating Temp. Range ADJ TO-220-5 0o to 70oC ADJ TO-220-5 0o to 70oC 1.5 TO-220-5 0o to 70oC 1.5 TO-220-5 0o to 70oC 2.5 TO-220-5 0o to 70oC 2.5 TO-220-5 0o to 70oC 3.3 TO-220-5 0o to 70oC 3.3 TO-220-5 0o to 70oC ADJ TO-263-5 0o to 70oC ADJ TO-263-5 0o to 70oC 1.5 TO-263-5 0o to 70oC 1.5 TO-263-5 0o to 70oC Note: yyww represents the date code * A line on top of the first letter represents lead free plating such as AME1505 Please consult AME sales office or authorized Rep./Distributor for the availability of output voltage and package type . 3 AME, Inc. AME1505 High Power BiPolar Linear LDO n Absolute Maximum Ratings Parameter Symbol Maximum VPOWER 7 VCONTROL 13 Unit Input Voltage Thermal Resistance (Junction to Ambient) V TO-220-5 50 θJA TO-263-5 Operating Junction Temperature Range o C/W 62.5 TJ 0 to 125 Storage Temperature Range TSTG - 65 to 150 Lead Temperature (10 Sec) TLEAD 260 o C Caution: Stress above the listed absolute maximum rating may cause permanent damage to the device 4 AME, Inc. AME1505 High Power BiPolar Linear LDO n Electrical Specifications Electrical Characteristics at IO=0mA, and Tj=25OC unless otherwise specified Parameter Reference voltage (adjustable voltage) Symbol VREF 1.5V Output Voltage 2.5V 3.3V Line regulation RegLINE Load regulation RegLOAD Control Dropout ( VCONTROL - Vo ) Power Dropout ( VPOWER - Vo ) Minimum Load Current (ADJ only) Test Condition VCONTROL = 2.75V, Vpower=2V, Io=10mA VCONTROL = 2.75 ~ 12V, Vpower=3.3 ~ 5.5V, Io=10mA ~ 5A VCONTROL = 4V, Vpower=3.3V, Io=10mA VCONTROL = 3V, Vpower=2.3V, Io= 10mA ~ 5A VCONTROL = 5V, Vpower=3.3V, Io=10mA VCONTROL = 4V, Vpower=3.3V, Io= 10mA ~ 5A VCONTROL = 5.8V, Vpower=3.8V, Io=10mA VCONTROL = 4.8V, Vpower=4.1V, Io= 10mA ~ 5A Io=10mA, 1.5V<= (V CONTROL-V OUT) =< 12V, Min Typ 1.238 Max 1.262 1.250 1.225 V 1.275 1.485 1.515 1.500 1.470 1.530 2.475 2.525 2.500 2.450 V 2.550 3.267 3.333 3.300 3.234 3.366 1 5 mV 1 7 mV VPOWER = Vo + 0.8V, Io=5A 1.30 1.45 VCONTROL = Vo + 2.5V, Io=5A 0.45 0.75 VCONTROL = 5V, VPOWER = 3.3V, VADJ= 0V 5 10 mA 80 100 mA 6 10 mA 50 120 µA 0.8V<= (V POWER -V OUT) =< 5.5V VCONTROL =Vout +2.5V, VPOWER = VOUT+0.8V Io=10 mA ~ 5A VD Imin V VCONTROL = Vo + 2.5V, Control Pin Current VPOWER = Vo + 0.8V, Io = 10mA ~ 5A VCONTROL = Vo + 2.5V, Ground Pin Current VPOWER = Vo + 0.8V, Io = 10mA ~ 5A VCONTROL = 2.75V, ADJ Pin Current Units VPOWER = 2.05V, Io =10mA Current limit IS VIN - Vo = 5V 5.0 7.5 - A Temperature Coefficient TC VIN = 2.75 - 7V, IO = 10mA - 5A - 0.005 - %/ oC Temperature stability TS VIN = 5V, IO = 500mA, Over temp. 0.5 0.5 - % Ripple rejection ratio RA 60 80 - dB VCONTROL = VPOWER = Vo + 2.5V, VRIPPLE = 1V P-P, Io =2A 5 AME, Inc. AME1505 High Power BiPolar Linear LDO n Application Description 1. Output voltage adjustment 3. Stability and load regulation Like most regulators, the AME1505 regulates the output by comparing the output voltage to an internally generated reference voltage. On the adjustable version, the VREF is available externally as 1.25V between VOUT and ADJ. The voltage ratio formed by R1 and R2 should be set to conduct 10mA (minimum output load). The output voltage is given by the following equation: R2 VOUT = VREF ( 1 + ) + IADJ x R2 R1 AME1505 requires a capacitor from VOUT to GND to provide compensation feedback to the internal gain stage. This is to ensure stability at the output terminal. Typically, a 10µF tantalum or 50µF aluminum electrolytic is sufficient. On fixed versions of AME1505, the voltage divider is factory-preset internally. 2. Current limit protection AME1505 is protected against overload conditions. Current protection is triggered at typical 7.5A. VIN VCONTROL OUT VPOWER (Note: It is important that the ESR for this capacitor does not exceed 0.5Ω.) The output capacitor dose not have a theoretical upper limit and increasing its value will increase stability. COUT = 100µF or more is typical for high current regulator design. For the adjustable version, the best load regulation is accomplished when the top of the resistor divider (R1) is connected directly to the output pin of the AME1505. When so connected, RP is not multiplied by the divider ratio. VOUT For fixed output versions, the top of R1 is internally connected to the output. The ground pin can be connected to low side of the load to eliminate ground loop errors. VREF VCONTROL SENSE ADJ R1 C1 VCONTROL IADJ OUT RP Parasitic Line Resistance VPOWER VPOWER R2 VOUT = VREF (1+ R2 ) + I ADJ x R2 R1 SENSE ADJ R1 (Connect R1 to case) R2 Connect R2 to load 6 RL AME, Inc. AME1505 High Power BiPolar Linear LDO 4. Thermal consideration The AME1505 series contain thermal limiting circuitry designed to protect itself for over-temperature conditions. Even for normal load conditions, maximum junction temperature ratings must not be exceeded. As mention in thermal protection section, we need to consider all sources of thermal resistance between junction and ambient. It includes junction-to-case, case-to-heat-sink interface and heat sink thermal resistance itself. Junction-to-case thermal resistance is specified from the IC junction to the bottom of the case directly below the die. Proper mounting is required to ensure the best possible thermal flow from this area of the package to the heat sink. The case of all devices in this series is electrically connected to the output. Therefore, if the case of the device must be electrically isolated, a thermally conductive spacer is recommended. 7 AME, Inc. AME1505 High Power BiPolar Linear LDO Reference Voltage vs. Temperature Adjustable Pin Current vs. Temperature 1.2515 58 56 ADJ pin Current (uA) Reference Voltage (V) 1.2510 1.2505 1.2500 1.2495 1.2490 54 52 50 48 1.2485 1.2480 -45 -5 25 55 46 -45 85 -5 Temperature (oC) Control Pin Current vs. Temperature Control Pin Dropout Voltage (V) Control Pin Current @ 10mA (mA) 85 Control Dropout Voltage vs. Load 10.0 9.5 9.0 8.5 8.0 7.5 7.0 6.5 25 oC 1.30 85 oC 1.25 1.20 1.15 1.10 6.0 -45 -5 25 55 Temperature 1 85 3 4 5 Load Current (A) Output Voltage vs. Load Current Power Dropout Voltage vs. Load 700 2.490 600 VP Dropout Voltage (mV) V OUT =2.5V 2.489 2.488 2.487 2.486 2.485 2.484 2.483 1 2 (oC) 2.491 Output Voltage (V) 55 1.35 10.5 2 3 Load Current (A) 8 25 Temperature (o C) 4 5 500 400 300 VOUT=2.5V 200 100 0 1 2 3 Load Current (A) 4 5 AME, Inc. AME1505 High Power BiPolar Linear LDO n External Resistor Divider Table for Customized Voltage R1 (Ohm) 100 102 105 110 113 115 118 121 124 0.000 4.698 9.396 14.09 18.79 23.49 28.19 32.88 37.58 42.28 46.98 51.68 56.37 61.07 65.77 70.47 75.17 79.86 84.56 89.26 93.96 98.65 103.4 108.1 112.7 117.4 122.1 126.8 131.5 136.2 140.9 145.6 150.3 155.0 159.7 164.4 169.1 173.8 0.000 4.817 9.633 14.45 19.27 24.08 28.90 33.72 38.53 43.35 48.17 52.98 57.80 62.62 67.43 72.25 77.07 81.88 86.70 91.52 96.33 101.2 106.0 110.8 115.6 120.4 125.2 130.1 134.9 139.7 144.5 149.3 154.1 159.0 163.8 168.6 173.4 178.2 0.000 4.936 9.871 14.81 19.74 24.68 29.61 34.55 39.48 44.42 49.36 54.29 59.23 64.16 69.10 74.03 78.97 83.90 88.84 93.77 98.71 103.6 108.6 113.5 118.5 123.4 128.3 133.3 138.2 143.1 148.1 153.0 157.9 162.9 167.8 172.7 177.7 182.6 R2(Ohm)=(Vout-1.25)*R1/(1.25+50u*R1) Vout 1.25 1.30 1.35 1.40 1.45 1.50 1.55 1.60 1.65 1.70 1.75 1.80 1.85 1.90 1.95 2.00 2.05 2.10 2.15 2.20 2.25 2.30 2.35 2.40 2.45 2.50 2.55 2.60 2.65 2.70 2.75 2.80 2.85 2.90 2.95 3.00 3.05 3.10 107 0.000 3.984 7.968 11.95 15.94 19.92 23.90 27.89 31.87 35.86 39.84 43.82 47.81 51.79 55.78 59.76 63.75 67.73 71.71 75.70 79.68 83.67 87.65 91.63 95.62 99.60 103.6 107.6 111.6 115.5 119.5 123.5 127.5 131.5 135.5 139.4 143.4 147.4 0.000 4.063 8.127 12.19 16.25 20.32 24.38 28.44 32.51 36.57 40.63 44.70 48.76 52.82 56.89 60.95 65.01 69.08 73.14 77.21 81.27 85.33 89.40 93.46 97.52 101.6 105.6 109.7 113.8 117.8 121.9 126.0 130.0 134.1 138.2 142.2 146.3 150.3 0.000 4.182 8.365 12.55 16.73 20.91 25.09 29.28 33.46 37.64 41.82 46.01 50.19 54.37 58.55 62.74 66.92 71.10 75.28 79.47 83.65 87.83 92.01 96.20 100.4 104.6 108.7 112.9 117.1 121.3 125.5 129.7 133.8 138.0 142.2 146.4 150.6 154.8 0.000 4.262 8.524 12.79 17.05 21.31 25.57 29.83 34.09 38.36 42.62 46.88 51.14 55.40 59.66 63.93 68.19 72.45 76.71 80.97 85.24 89.50 93.76 98.02 102.3 106.5 110.8 115.1 119.3 123.6 127.9 132.1 136.4 140.6 144.9 149.2 153.4 157.7 0.000 4.381 8.761 13.14 17.52 21.90 26.28 30.67 35.05 39.43 43.81 48.19 52.57 56.95 61.33 65.71 70.09 74.47 78.85 83.23 87.61 92.00 96.38 100.8 105.1 109.5 113.9 118.3 122.7 127.0 131.4 135.8 140.2 144.6 148.9 153.3 157.7 162.1 0.000 4.500 8.999 13.50 18.00 22.50 27.00 31.50 36.00 40.50 45.00 49.50 54.00 58.50 63.00 67.49 71.99 76.49 80.99 85.49 89.99 94.49 98.99 103.5 108.0 112.5 117.0 121.5 126.0 130.5 135.0 139.5 144.0 148.5 153.0 157.5 162.0 166.5 0.000 4.579 9.158 13.74 18.32 22.89 27.47 32.05 36.63 41.21 45.79 50.37 54.95 59.53 64.11 68.68 73.26 77.84 82.42 87.00 91.58 96.16 100.7 105.3 109.9 114.5 119.1 123.6 128.2 132.8 137.4 141.9 146.5 151.1 155.7 160.3 164.8 169.4 9 AME, Inc. AME1505 High Power BiPolar Linear LDO n External Resistor Divider Table for Customized Voltage (contd.) R1 (Ohm) 100 102 105 10 110 113 115 118 121 124 178.5 183.2 187.9 192.6 197.3 202.0 206.7 211.4 216.1 220.8 225.5 230.2 234.9 239.6 244.3 249.0 253.7 258.4 263.1 267.8 272.5 277.2 281.9 286.6 291.3 296.0 300.7 305.4 310.1 314.8 319.5 324.2 328.8 333.5 338.2 342.9 347.6 352.3 183.0 187.9 192.7 197.5 202.3 207.1 211.9 216.8 221.6 226.4 231.2 236.0 240.8 245.7 250.5 255.3 260.1 264.9 269.7 274.6 279.4 284.2 289.0 293.8 298.6 303.5 308.3 313.1 317.9 322.7 327.5 332.4 337.2 342.0 346.8 351.6 356.4 361.3 187.5 192.5 197.4 202.4 207.3 212.2 217.2 222.1 227.0 232.0 236.9 241.8 246.8 251.7 256.6 261.6 266.5 271.5 276.4 281.3 286.3 291.2 296.1 301.1 306.0 310.9 315.9 320.8 325.7 330.7 335.6 340.6 345.5 350.4 355.4 360.3 365.2 370.2 R2(Ohm)=(Vout-1.25)*R1/(1.25+50u*R1) Vout 3.15 3.20 3.25 3.30 3.35 3.40 3.45 3.50 3.55 3.60 3.65 3.70 3.75 3.80 3.85 3.90 3.95 4.00 4.05 4.10 4.15 4.20 4.25 4.30 4.35 4.40 4.45 4.50 4.55 4.60 4.65 4.70 4.75 4.80 4.85 4.90 4.95 5.00 107 151.4 155.4 159.4 163.3 167.3 171.3 175.3 179.3 183.3 187.3 191.2 195.2 199.2 203.2 207.2 211.2 215.1 219.1 223.1 227.1 231.1 235.1 239.0 243.0 247.0 251.0 255.0 259.0 262.9 266.9 270.9 274.9 278.9 282.9 286.9 290.8 294.8 298.8 154.4 158.5 162.5 166.6 170.7 174.7 178.8 182.9 186.9 191.0 195.0 199.1 203.2 207.2 211.3 215.4 219.4 223.5 227.6 231.6 235.7 239.7 243.8 247.9 251.9 256.0 260.1 264.1 268.2 272.2 276.3 280.4 284.4 288.5 292.6 296.6 300.7 304.8 158.9 163.1 167.3 171.5 175.7 179.8 184.0 188.2 192.4 196.6 200.8 204.9 209.1 213.3 217.5 221.7 225.9 230.0 234.2 238.4 242.6 246.8 250.9 255.1 259.3 263.5 267.7 271.9 276.0 280.2 284.4 288.6 292.8 297.0 301.1 305.3 309.5 313.7 161.9 166.2 170.5 174.7 179.0 183.3 187.5 191.8 196.0 200.3 204.6 208.8 213.1 217.3 221.6 225.9 230.1 234.4 238.7 242.9 247.2 251.4 255.7 260.0 264.2 268.5 272.8 277.0 281.3 285.5 289.8 294.1 298.3 302.6 306.8 311.1 315.4 319.6 166.5 170.8 175.2 179.6 184.0 188.4 192.8 197.1 201.5 205.9 210.3 214.7 219.0 223.4 227.8 232.2 236.6 240.9 245.3 249.7 254.1 258.5 262.8 267.2 271.6 276.0 280.4 284.7 289.1 293.5 297.9 302.3 306.7 311.0 315.4 319.8 324.2 328.6 171.0 175.5 180.0 184.5 189.0 193.5 198.0 202.5 207.0 211.5 216.0 220.5 225.0 229.5 234.0 238.5 243.0 247.5 252.0 256.5 261.0 265.5 270.0 274.5 279.0 283.5 288.0 292.5 297.0 301.5 306.0 310.5 315.0 319.5 324.0 328.5 333.0 337.5 174.0 178.6 183.2 187.7 192.3 196.9 201.5 206.1 210.6 215.2 219.8 224.4 228.9 233.5 238.1 242.7 247.3 251.8 256.4 261.0 265.6 270.2 274.7 279.3 283.9 288.5 293.1 297.6 302.2 306.8 311.4 315.9 320.5 325.1 329.7 334.3 338.8 343.4 AME, Inc. AME1505 High Power BiPolar Linear LDO n Package Dimension TO-263-5 SYMBOLS Top View Side View A B K E H P W D G N A B C D E G H K N P R W MILLIMETERS INCHES MIN MAX MIN MAX 10.050 10.668 0.396 0.420 8.280 9.169 0.326 0.361 4.310 4.670 0.170 0.184 0.660 0.910 0.026 0.036 1.140 1.400 0.045 0.055 1.70REF 0.067 REF 14.605 15.875 0.575 0.625 1.143 1.680 0.045 0.066 0.330 0.580 0.013 0.023 2.280 2.800 0.090 0.110 0 o 8 o 0 o 8 0.25REF 0.01REF MILLIMETERS INCHES o R Front View C TO-220-5 Top View SYMBOLS Side View C I A J D E F MIN MAX MIN MAX A 2.616 REF 2.870 REF 0.103 REF 0.113 REF B 10.160 10.668 0.400 0.420 C 3.708 3.962 0.146 0.156 D 8.915 9.169 0.351 0.361 E 12.700 14.732 0.500 0.580 F 1.575 1.829 0.062 0.072 G 0.711 0.965 0.028 0.038 H 4.343 4.597 0.171 0.181 I 1.143 1.397 0.045 0.055 J 14.859 15.113 0.585 0.595 K 2.032 3.048 0.080 0.120 L 0.305 0.457 0.012 0.018 H B G L K 11 www.ame.com.tw E-Mail: [email protected] Life Support Policy: These products of AME, Inc. are not authorized for use as critical components in life-support devices or systems, without the express written approval of the president of AME, Inc. AME, Inc. reserves the right to make changes in the circuitry and specifications of its devices and advises its customers to obtain the latest version of relevant information. AME, Inc. , June 2005 Document: 2039-DS1505-J Corporate Headquarter AME, Inc. 2F, 302 Rui-Guang Road, Nei-Hu District Taipei 114, Taiwan. Tel: 886 2 2627-8687 Fax: 886 2 2659-2989 U.S.A.(Subsidiary) Analog Microelectronics, Inc. 3100 De La Cruz Blvd., Suite 201 Santa Clara, CA. 95054-2046 Tel : (408) 988-2388 Fax: (408) 988-2489