EZ1083 7.5A Positive Voltage Regulator POWER MANAGEMENT Description Features Low dropout performance: 1.4V max. for EZ1083 Full current rating over line and temperature Fast transient response Adjust pin current max 90µA 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 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. Applications 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. 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 3 VIN > 4.75V + IN C1 10uF Tant. EZ1083-3.3 2 TAB OUT VOUT = 3.3V + GND C2 10uF Tant. Min. 1 Adjustable Voltage Regulator 3 VIN > 4.75V + C1 10uF Tant. U1 IN EZ1083 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: December 21, 2005 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 Symbol Maximum Units Input Supply Voltage VIN 7 V Power Dissipation PD Internally Limited W Thermal Resistance Junction to Case θJ C 1.6 °C/W Thermal Resistance Junction to Ambient θJ A 50 °C/W Operating Junction Temperature Range TJ 0 to 125 °C Storage Temperature Range TSTG -65 to 150 °C Lead Temperature (Soldering) 10 Sec. TLEAD 300 °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 (1) Symbol VIN IO TJ(5) Min Typ Max Units VO 5V 0mA 25°C 0.985lVOl VO 1.015lVOl V O.T. 0.98lVOl VO 1.02lVOl 25°C 1.231 1.250 1.269 O.T. 1.225 1.250 1.275 25°C 0.015 0.2 O.T. 0.035 0.2 25°C 0.05 0.3 O.T. 0.2 0.4 25°C 1 O.T. 1.20 EZ1083-X.X Reference Voltage (1) VREF 5V 10mA EZ1083 Line Regulation Load Regulation (1) Dropout Voltage 10mA REG(LINE) (2) REG(LOAD) 5V VD EZ1083, EZ1083-X.X Current Limit ICL Quiescent Current Fixed Voltage Version IQ Temperature Coefficient TC 2005 Semtech Corp. O.T. 5V 2 7.5 12 O.T. 0.005 % % V 1.40 9.5 O.T. V A 14 mA %/°C www.semtech.com EZ1083 POWER MANAGEMENT Electrical Characteristics (Cont.) Parameter Adjust Pin Current Symbol VIN IO TJ(5) IADJ Min 25°C Typ 55 O.T. Adjust Pin Current Change ∆IADJ Temperature Stability TS 5V Minimum Load Current Adj Voltage Version IO 5V RMS Output Noise(3) VN Ripple Rejection Ratio(4) RA 5V 0.5A 7.5A Max Units µA 90 O.T. 0.2 O.T. 0.5 O.T. 5 25°C 0.003 %VO 72 dB O.T. 60 5 µA % 10 mA 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). (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 Package(3) VOUT Volts(2) TO-220 Fixed and Adjustable EZ1083CT-X.X(1) EZ1083CT-X.XT(4) 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 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 INCHES MILLIMETERS MIN NOM MAX MIN NOM MAX .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 .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. 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. 2005 Semtech Corp. Semtech Sw itz erland GmbH Japan Branch 5 www.semtech.com