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| POWER MANAGEMENT Description The EZ1083 is a high performance positive voltage regulator designed for use in applications requiring low dropout performance at 7.5A. Additionally, the EZ1083 series provides excellent regulation over variations in line, load and temperature. Features include 1.4V dropout at 7.5 amps, fast transient response, internal current limiting and thermal shutdown protection of the output device. The EZ1083 has both fixed and adjustable voltage options. These devices are available in the popular TO-220 package. The EZ1083 is used in industrial systems to provide power to microprocessors and chipsets. It is also used to power ASICs in control systems for medical applications. EZ1083 7.5A Positive Voltage Regulator Features Low dropout performance: 1.4V max. for EZ1083 Full current rating over line and temperature Fast transient response Adjust pin current max 90A over temperature Fixed/adjustable output voltage (EZ1083) Line regulation typically 0.015% Load regulation typically 0.05% 2% total output regulation over line, load and temperature TO-220 package. Available in WEEE and RoHS compliant package Applications PC Motherboards Microcontroller systems Medical equipment Low power microprocessor systems Post regulation for switching power supplies Telecommunication systems Typical Application Circuit Fixed Voltage Regulator U1 VIN > 4.75V 3 IN EZ1083-3.3 2 TAB OUT VOUT = 3.3V + C1 10uF Tant. GND 1 + C2 10uF Tant. Min. Adjustable Voltage Regulator VIN > 4.75V 3 U1 IN TAB EZ1083 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 Revision: December 21, 2005 1 R2 232 Ohm, 1% R2 VOUT = VREF * 1 + + I ADJ * R 2 R1 www.semtech.com EZ1083 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 Thermal Resistance Junction to Ambient Operating Junction Temperature Range Storage Temperature Range Lead Temperature (Soldering) 10 Sec. Symbol VIN PD J C J A TJ TSTG TLEAD Maximum 7 Internally Limited 1.6 50 0 to 125 -65 to 150 300 Units V W C/W C/W C C C Electrical Characteristics Unless otherwise specified: Adj. VIN = 2.75V to 7.0V and Adj. IO = 10mA to 7.5A; Fixed VIN = 4.75 to 7.0V and Fixed IO = 0 mA to 7.5A Parameter Output Voltage EZ1083-X.X Reference Voltage EZ1083 Line Regulation (1) (1) Symbol VO VIN 5V IO 0mA TJ(5) 25C O.T. Min 0.985lVOl 0.98lVOl 1.231 1.225 Typ VO VO 1.250 1.250 0.015 0.035 0.05 0.2 1 1.20 Max 1.015lVOl 1.02lVOl 1.269 1.275 0.2 0.2 0.3 0.4 Units V VREF 5V 10mA 25C O.T. V REG(LINE) 10mA 25C O.T. % Load Regulation (1) REG(LOAD) 5V 25C O.T. % Dropout Voltage (2) VD 25C O.T. V 1.40 A 14 mA %/C EZ1083, EZ1083-X.X Current Limit Quiescent Current Fixed Voltage Version Temperature Coefficient ICL IQ TC 5V O.T. O.T. O.T. 7.5 9.5 12 0.005 2005 Semtech Corp. 2 www.semtech.com EZ1083 POWER MANAGEMENT Electrical Characteristics (Cont.) Parameter Adjust Pin Current Symbol IADJ VIN IO TJ(5) 25C O.T. Adjust Pin Current Change Temperature Stability Minimum Load Current Adj Voltage Version RMS Output Noise(3) Ripple Rejection Ratio(4) IADJ TS IO VN RA 5V 7.5A 5V 5V 0.5A O.T. O.T. O.T. 25C O.T. 60 0.2 0.5 5 0.003 72 10 Min Typ 55 90 5 A % mA %VO dB Max Units A 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). (5) Over Temp. (O.T.) = over specified operating junction temperature range. 2005 Semtech Corp. 3 www.semtech.com EZ1083 POWER MANAGEMENT Pin Configuration Ordering Information Device EZ1083CT-X.X(1) EZ1083CT-X.XT(4) TO-220 Fixed and Adjustable Package(3) VOUT Volts(2) Notes: (1) Where X.X denotes voltage options. Available voltages are: 2.5V and 3.3V. Leave blank for adjustable version. Contact factory for additional voltage options. (2) Adjustable versions: output adjusts from 1.3V to 5.7V. (3) Only available in tube packaging. A tube contains 50 devices. (4) This product is fully WEEE and RoHS compliant. Block Diagram 2005 Semtech Corp. 4 www.semtech.com EZ1083 POWER MANAGEMENT Outline Drawing - TO-220 OP BA B A E2 E/2 Q H1 D2 D D1 L1 L E A A1 SEATING PLANE aaa 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 INCHES MILLIMETERS MIN NOM MAX MIN NOM MAX .140 .020 .080 .015 .045 .014 .560 .330 .480 .380 .270 .190 3.56 4.82 .055 0.51 1.40 .115 2.03 2.92 .027 .040 0.38 0.69 1.02 .057 .070 1.14 1.45 1.78 .024 0.36 0.61 .650 14.22 16.51 9.02 .355 8.38 .507 12.19 12.88 .420 9.65 10.66 .350 6.86 8.90 .030 0.76 .100 BSC 2.54 BSC .200 BSC 5.08 BSC .230 .270 5.84 6.86 .500 .580 12.70 14.73 .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 Contact Information Semtech Corporation Power Management Products Division 200 Flynn Road, Camarillo, CA 93012 Phone: (805)498-2111 FAX (805)498-3804 2005 Semtech Corp. 5 www.semtech.com |
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