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| 3 Amp Positive Voltage Regulator POWER MANAGEMENT Description The EZ1085 series of high performance positive voltage regulators are designed for use in applications requiring low dropout performance at up to 3A. Additionally, the EZ1085 series provides excellent regulation over variations in line, load and temperature. Outstanding features include low dropout performance at rated current, fast transient response, internal current limiting and thermal shutdown protection of the output device. A variety of options are available for maximum flexibility: the EZ1085C has both fixed and adjustable voltage options and is designed for use in commercial applications and the EZ1085I is adjustable only for industrial applications. All devices are available in the popular TO-220 and TO-263 packages. EZ1085 Features Low dropout voltage: 1.3V max. for EZ1085C, 1.4V max. for EZ1085I Full current rating over line and temperature Fast transient response 2% total output regulation over line, load and temperature Adjust pin current max 90A over temperature Fixed/adjustable output voltage (EZ1085C) Line regulation typically 0.015% Load regulation typically 0.05% Industrial temperature range (EZ1085I) TO-220 and TO-263 packages. Available in RoHS compliant package Applications Printer and plotter supplies Instrumentation Medical equipment Microcontroller systems Telecommunication systems Motherboards Switching supply post regulation Typical Application Circuit Fixed Voltage Regulator U1 VIN > 4.75V 3 IN EZ1085C-3.3 2 TAB OUT VOUT = 3.3V + C1 10uF Tant. GND 1 + C2 10uF Tant. Min. Adjustable Voltage Regulator U1 VIN > 4.75V 3 IN TAB EZ1085 OUT 2 VOUT = 3.45V + C1 10uF Tant. ADJ 1 R1 133 Ohm, 1% + C2 10uF Tant. Min Notes: (1) C1 needed if device is far from filter capacitors (2) C2 minimum value required for stability R2 232 Ohm, 1% R2 VOUT = VREF * 1 + + I ADJ * R 2 R1 Revision: January 25, 2006 1 www.semtech.com EZ1085 POWER MANAGEMENT Absolute Maximum Ratings Exceeding the specifications below may result in permanent damage to the device, or device malfunction. Operation outside of the parameters specified in the Electrical Characteristics section is not implied. Parameter Input Supply Voltage Power Dissipation Thermal Resistance Junction to Case TO-220 TO-263 Thermal Resistance Junction to Ambient TO-220 TO-263 Operating Ambient Temperature Range EZ1085C EZ1085I Operating Junction Temperature Range EZ1085C EZ1085I Storage Temperature Range Lead Temperature (Soldering) 10 Sec. ESD Rating (Human Body Model) Symbol VIN PD J C Maximum 7 Internally Limited 3 3 50 60 0 to 70 -40 to 85 0 to 125 -40 to 125 -65 to 150 300 2 Units V W C/W J A C/W TA C TJ TSTG TLEAD ESD C C C kV Electrical Characteristics Unless otherwise specified: Adj. VIN = 2.75V to 7.0V and Adj. IO = 10mA to 3A; Fixed VIN = 4.75 to 7.0V and Fixed IO = 0 mA to 3A. Values in bold apply over full operating ambient temperature range. Parameter Output Voltage EZ1085C-X.X Reference Voltage (1) (1) Symbol VO VIN 5V IO 0mA Min 0.985lVOl 0.98lVOl Typ VO Max 1.015lVOl 1.02lVOl Units V VREF 5V 10mA 1.231 1.225 1.250 1.269 1.275 V EZ1085C, EZ1085I Reference Voltage Line Regulation (1) Load Regulation (1) Dropout Voltage(1)(2) EZ1085C, EZ1085C-X.X EZ1085I Current Limit ICL (1) VRE REG(LINE) REG(LOAD) VD 5V 10mA 10mA 1.233 1.250 0.045 0.15 1.267 0.2 0.4 1.35 1.40 V % % V 5V 3A 1.20 1.20 3.0 4.5 A 2006 Semtech Corp. 2 www.semtech.com EZ1085 POWER MANAGEMENT Electrical Characteristics (Cont) Unless otherwise specified: Adj. VIN = 2.75V to 7.0V and Adj. IO = 10mA to 3A; Fixed VIN = 4.75 to 7.0V and Fixed IO = 0 mA to 3A. Values in bold apply over full operating ambient temperature range. Parameter Quiescent Current Fixed Voltage Version Temperature Coefficient Adjust Pin Current Adjust Pin Current Change Temperature Stability Minimum Load Current Adj Voltage Versions RMS Output Noise(3) Ripple Rejection Ratio(4) Symbol IQ TC IADJ IADJ TS IO VN RA VIN 5V IO Min Typ 10 0.005 55 0.2 Max 14 Units mA %/C 90 5 A A % 5V 5V 0.5A 0.5 5 0.003 10 mA %VO dB 5V 3A 60 72 NOTES: (1) Low duty cycle pulse testing with Kelvin connections required. (2) VOUT, VREF = 1% (3) Bandwidth of 10 Hz to 10 kHz. (4) 120 Hz input ripple (CADJ for ADJ = 25F). 2006 Semtech Corp. 3 www.semtech.com EZ1085 POWER MANAGEMENT Pin Configurations Ordering Information Device(1)(2) EZ1085CM-X.X.TR EZ1085IM.TR EZ1085CM-X.XTRT(5) EZ1085IMTRT(5) EZ1085CT-X.X EZ1085IT EZ1085CT-X.XT(5) EZ1085ITT(5) P ackag e TO-263(3) TO-220(4) Notes: (1) Where X.X denotes voltage options (EZ1085C only). Available voltages are: 2.5V and 3.3V. Leave blank for adjustable version (1.3 to 5.7V). Contact factory for additional voltage options. (2) Where C and I denote Commercial (0C to 70C) and Industrial (-40C to 85C) ambient temperature ranges. (3) Only available in tape and reel packaging. A reel contains 800 devices. (4) Only available in tube packaging. A tube contains 50 devices. (5) This product is RoHS compliant. Pin Descriptions Pin 1 Pin Name ADJUST GROUND 2 3 OUTPUT INPUT Pin Function This pin is the negative side of the reference voltage for adjustable devices. Transient response can be improved by adding a small bypass capacitor from the adjust pin to ground. This pin is the bottom end of the internal resistor feedback chain for fixed output voltage parts, and should be connected to ground. This is the power output of the device and is electrically connected to the TAB. This is the input supply pin for both the control circuitry and the pass device. Block Diagram 2006 Semtech Corp. 4 www.semtech.com EZ1085 POWER MANAGEMENT Outline Drawing - TO-220 aaa OP BA B A E2 E/2 Q H1 D2 D D1 L1 L E A A1 SEATING PLANE DIM A A1 A2 b b2 c D D1 D2 E E1 E2 e e1 H1 L L1 N OP Q aaa bbb ccc DIMENSIONS MILLIMETERS INCHES MIN NOM MAX MIN NOM MAX .140 .020 .080 .015 .045 .014 .560 .330 .480 .380 .270 4.82 .190 3.56 1.40 .055 0.51 2.92 .115 2.03 .027 .040 0.38 0.69 1.02 .057 .070 1.14 1.45 1.78 0.61 .024 0.36 .650 14.22 16.51 .355 8.38 9.02 .507 12.19 12.88 .420 9.65 10.66 .350 6.86 8.90 .030 0.76 2.54 BSC .100 BSC 5.08 BSC .200 BSC .230 .270 5.84 6.86 .500 14.73 .580 12.70 .250 6.35 3 3 .139 .156 3.53 3.96 .100 .120 2.54 3.05 .014 0.36 .015 0.38 .010 0.25 C c 3 x b2 3xb bbb 2x e e1 NOTES: 1. CONTROLLING DIMENSIONS ARE IN INCHES. 2. DIMENSIONS "D" AND "E" DO NOT INCLUDE MOLD FLASH, PROTRUSIONS OR GATE BURRS. A2 BA E1 ccc BA Outline Drawing - T0-263 A E E/2 0 L1 DIMENSIONS INCHES MILLIMETERS DIM MIN NOM MAX MIN NOM MAX A A1 b b1 c c1 D D1 E E1 H e L L1 N 0 01 aaa .190 4.06 4.83 0.25 .010 0.00 0.99 .039 0.51 .070 1.14 1.78 0.74 .029 0.38 .065 1.14 1.65 .380 8.28 9.65 6.86 .420 9.65 10.67 6.22 .625 14.61 15.88 .100 BSC 2.54 BSC 2.79 .110 1.78 .070 1.68 .066 3 3 15 15 0 8 0 8 .010 0.25 .160 .000 .020 .045 .015 .045 .326 .270 .380 .245 .575 D H 1 2 3 e 3x b1 bxN aaa BA A SEATING PLANE B A1 c1 PLATED COPPER HEAT SPREADER D1 (L1) E1 L DETAIL NOTES: 1. CONTROLLING DIMENSIONS ARE IN INCHES (ANGLES IN DEGREES). 2. DIMENSIONS "D" AND "E" DO NOT INCLUDE MOLD FLASH, PROTRUSIONS OR GATE BURRS. SIDE VIEW SEE DETAIL A c A 01 2006 Semtech Corp. 5 www.semtech.com EZ1085 POWER MANAGEMENT Land Pattern - TO-263 H DIM G H K P X Y Z DIMENSIONS INCHES MILLIMETERS .125 .420 .350 .100 .070 .140 .615 3.17 10.67 8.89 2.54 1.78 3.56 15.62 K Z G Y X P NOTES: 1. THIS LAND PATTERN IS FOR REFERENCE PURPOSES ONLY CONSULT YOUR MANUFACTURING GROUP TO ENSURE YOUR COMPANY'S MANUFACTURING GUIDELINES ARE MET. Contact Information Semtech Corporation Power Management Products Division 200 Flynn Road, Camarillo, CA. 93012 Phone: (805)498-2111 FAX (805)498-3804 2006 Semtech Corp. 6 www.semtech.com |
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