EZ1085 3 Amp Positive Voltage Regulator POWER MANAGEMENT Description Features 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. 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 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. temperature Adjust pin current max 90µA 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 All devices are available in the popular TO-220 and TO-263 packages. Typical Application Circuit Printer and plotter supplies Instrumentation Medical equipment Microcontroller systems Telecommunication systems Motherboards Switching supply post regulation Fixed Voltage Regulator U1 3 VIN > 4.75V + IN C1 10uF Tant. EZ1085C-3.3 2 TAB OUT VOUT = 3.3V + GND C2 10uF Tant. Min. 1 Adjustable Voltage Regulator U1 3 VIN > 4.75V + C1 10uF Tant. IN EZ1085 TAB OUT 2 VOUT = 3.45V R1 133 Ohm, 1% ADJ + C2 10uF Tant. Min 1 R2 232 Ohm, 1% Notes: (1) C1 needed if device is far from filter capacitors (2) C2 minimum value required for stability Revision: January 25, 2006 1 R2 VOUT = VREF • 1 + + I ADJ • R 2 R1 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 Symbol Maximum Units Input Supply Voltage VIN 7 V Power Dissipation PD Internally Limited W Thermal Resistance Junction to Case TO-220 TO-263 θJ C 3 3 °C/W Thermal Resistance Junction to Ambient TO-220 TO-263 θJ A 50 60 °C/W Operating Ambient Temperature Range EZ1085C EZ1085I TA 0 to 70 -40 to 85 °C Operating Junction Temperature Range EZ1085C EZ1085I TJ 0 to 125 -40 to 125 °C Storage Temperature Range TSTG -65 to 150 °C Lead Temperature (Soldering) 10 Sec. TLEAD 300 °C ESD Rating (Human Body Model) ESD 2 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 (1) Symbol VIN IO Min Typ Max Units VO 5V 0mA 0.985lVOl VO 1.015lVOl V EZ1085C-X.X Reference Voltage 0.98lVOl (1) VREF 5V 10mA EZ1085C, EZ1085I Reference Voltage (1) VRE REG(LINE) Load Regulation (1) REG(LOAD) 5V 10mA 1.233 10mA 5V VD 3A EZ1085I Current Limit 2006 Semtech Corp. 1.250 1.225 Line Regulation (1) Dropout Voltage(1)(2) EZ1085C, EZ1085C-X.X 1.231 1.02lVOl ICL 3.0 2 1.269 V 1.275 1.250 1.267 V 0.045 0.2 % 0.15 0.4 % 1.20 1.35 V 1.20 1.40 4.5 A 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 Symbol VIN Quiescent Current Fixed Voltage Version IQ 5V Temperature Coefficient TC 0.005 Adjust Pin Current IADJ 55 90 µA ∆IADJ 0.2 5 µA Adjust Pin Current Change Temperature Stability TS 5V Minimum Load Current Adj Voltage Versions IO 5V RMS Output Noise(3) VN Ripple Rejection Ratio(4) RA 5V IO Min 0.5A Typ Max Units 10 14 mA 0.5 5 3A %/°C 60 % 10 mA 0.003 %VO 72 dB 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 = 25µF). 2006 Semtech Corp. 3 www.semtech.com EZ1085 POWER MANAGEMENT Pin Configurations Ordering Information Device(1)(2) P ackag e EZ1085CM-X.X.TR EZ1085IM.TR EZ1085CM-X.XTRT(5) EZ1085IMTRT(5) TO-263(3) EZ1085CT-X.X EZ1085IT EZ1085CT-X.XT(5) EZ1085ITT(5) 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 (0°C to 70°C) and Industrial (-40°C to 85°C) 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 Pin Name Pin Function 1 ADJUST 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. GROUND This pin is the bottom end of the internal resistor feedback chain for fixed output voltage parts, and should be connected to ground. 2 OUTPUT This is the power output of the device and is electrically connected to the TAB. 3 INPUT 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 ØP B A DIM A A1 A2 b b2 c D D1 D2 E E1 E2 e e1 H1 L L1 N ØP Q aaa bbb ccc B A SEATING PLANE E E2 A E/2 A1 Q H1 D2 D D1 L1 C L c 3 x b2 3xb bbb DIMENSIONS MILLIMETERS INCHES MIN NOM MAX MIN NOM MAX 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 .140 .020 .080 .015 .045 .014 .560 .330 .480 .380 .270 - E1 A2 ccc B A B A 2x e e1 NOTES: 1. CONTROLLING DIMENSIONS ARE IN INCHES. 2. DIMENSIONS "D" AND "E" DO NOT INCLUDE MOLD FLASH, PROTRUSIONS OR GATE BURRS. Outline Drawing - T0-263 E A DIMENSIONS INCHES MILLIMETERS DIM MIN NOM MAX MIN NOM MAX E/2 A A1 b b1 c c1 D D1 E E1 H e L L1 N 0 01 aaa L1 0 D H 1 2 3 e 3x b1 bxN aaa B A A .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 SEATING PLANE A1 B c1 SIDE VIEW SEE DETAIL PLATED COPPER HEAT SPREADER A D1 (L1) c E1 L DETAIL NOTES: 1. A 01 CONTROLLING DIMENSIONS ARE IN INCHES (ANGLES IN DEGREES). 2. DIMENSIONS "D" AND "E" DO NOT INCLUDE MOLD FLASH, PROTRUSIONS OR GATE BURRS. 2006 Semtech Corp. 5 www.semtech.com EZ1085 POWER MANAGEMENT Land Pattern - TO-263 H DIM K 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 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 for Semtech International AG Taiw an Branch Korea Branch Shanghai Office Tel: 886-2-2748-3380 Fax: 886-2-2748-3390 Tel: 81-3-6408-0950 Fax: 81-3-6408-0951 Tel: 82-2-527-4377 Fax: 82-2-527-4376 Semtech Limited (U.K.) Tel: 44-1794-527-600 Fax: 44-1794-527-601 Tel: 86-21-6391-0830 Fax: 86-21-6391-0831 Semtech France SARL Tel: 33-(0)169-28-22-00 Fax: 33-(0)169-28-12-98 Semtech Germany GmbH Tel: 49-(0)8161-140-123 Fax: 49-(0)8161-140-124 Semtech International AG is a wholly-owned subsidiary of Semtech Corporation, which has its headquarters in the U.S.A. 2006 Semtech Corp. Semtech Sw itz erland GmbH Japan Branch 6 www.semtech.com