EZ1082 10.0A Positive Voltage Regulator POWER MANAGEMENT Description Features The EZ1082 is a high performance positive voltage regulator designed for use in applications requiring low dropout performance at 10A. Additionally, the EZ1082 provides excellent regulation over variations in line, load and temperature. Features include 1.4V dropout at 10A, fast transient response, internal current limiting and thermal shutdown protection of the output device. The EZ1082 series are three terminal regulators with fixed and adjustable voltage options available in the popular TO-220 package. Low dropout performance, 1.4V max. Full current rating over line and temperature Fast transient response ±2% total output regulation over line, load and temperature Adjust pin current max 90µA over temperature Fixed/adjustable output voltage Line regulation typically 0.015% Load regulation typically 0.05% TO-220 3 pin package. Available in Pb-free plating, RoHS compliant Applications The EZ1082 is an excellent choice for powering microprocessor systems. Using an LDO eliminates MOSFETs and inductors saving both space and cost. An LDO also provides better transient response with no ripple to the load. High current microprocessor supplies Post regulators Microprocessor systems Medical equipment Embedded systems Post regulation for switching supplies Telecommunication systems Typical Application Circuit Fixed Voltage Regulator U1 3 VIN > 4.75V + IN C1 10uF Tant. EZ1082-3.3 2 TAB OUT VOUT = 3.3V + GND C2 10uF Tant. Min. 1 Adjustable Voltage Regulator U1 3 VIN > 4.75V + C1 10uF Tant. IN EZ1082 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: August 1, 2007 1 R2 VOUT = VREF • 1 + + I ADJ • R 2 R1 www.semtech.com EZ1082 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 3 °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 10.0A; Fixed VIN = 4.75 to 7.0V and Fixed IO = 0 mA to 10.0A Parameter Output Voltage (1) Symbol VIN IO TJ(4) Min Typ Max Units VO 5V OmA 25°C 0.99lVOl VO 1.01lVOl V O.T. 0.98lVOl VO 1.02lVOl 25°C 1.238 1.250 1.262 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 1.2 O.T. 1.2 Fixed Voltage Version Reference Voltage (1) VREF 5V 10mA Adj Voltage Version Line Regulation (1) Load Regulation (1) Dropout Voltage REG(LINE) REG(LOAD) 10mA 5V VD ∆VOUT, ∆VREF = 1% Current Limit ICL Quiescent Current Fixed Voltage Version IQ Temperature Coefficient TC 2007 Semtech Corp. O.T. 5V 2 10.0 12 O.T. 0.005 % % V 1.4 12 O.T. V A 14 mA %/°C www.semtech.com EZ1082 POWER MANAGEMENT Electrical Characteristics (Cont.) Parameter Adjust Pin Current Symbol VIN IO TJ(4) 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(2) VN Ripple Rejection Ratio(3) RA 5V 0.5A 10.0A 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) Bandwidth of 10 Hz to 10 kHz. (3) 120 Hz input ripple (CADJ for ADJ = 25µF). (4) Over Temp. (O.T.) = over specified operating junction temperature range. 2007 Semtech Corp. 3 www.semtech.com EZ1082 POWER MANAGEMENT Pin Configuration Ordering Information Device(1)(2) EZ1082CT-X.XT Package(3) TO-220 Notes: (1) Where X.X denotes voltage options. 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) Only available in tube packaging. A tube contains 50 devices. (3) Available in Pb-free plating, RoHS compliant. Block Diagram 2007 Semtech Corp. 4 www.semtech.com EZ1082 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 .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 .355 8.38 9.02 .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 .580 12.70 14.73 .500 .250 6.35 3 3 .139 .156 3.53 3.96 .120 2.54 3.05 .100 .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. 2007 Semtech Corp. Semtech Sw itz erland GmbH Japan Branch 5 www.semtech.com