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| 7.5 AMP POSITIVE VOLTAGE REGULATOR June 7, 1999 EZ1083 EZ1083B TEL:805-498-2111 FAX:805-498-3804 WEB:http://www.semtech.com DESCRIPTION The EZ1083 series of high performance positive voltage regulators are designed for use in applications requiring low dropout performance at full rated current. Additionally, the EZ1083 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. The EZ1083 has both fixed and adjustable voltage options, while the EZ1083B is adjustable only for cost sensitive applications. These devices are available in the popular TO-220 package. FEATURES * Low dropout performance, * * * * * * * * 1.3V max. for EZ1083, 1.45V max. for EZ1083B Full current rating over line and temperature Fast transient response 2% total output regulation over line, load and temperature (2.4% for EZ1083B) Adjust pin current max 90A over temperature Fixed/adjustable output voltage (EZ1083) Line regulation typically 0.015% Load regulation typically 0.05% TO-220 package ORDERING INFORMATION DEVICE PACKAGE TO-220 VOUT VOLTS See Note (1) 1.30 to 5.7 APPLICATIONS * High current microprocessor supplies * Post regulators BLOCK DIAGRAM EZ1083CT-X.X EZ1083BCT Note: (1) Where X.X denotes voltage options. Available voltages are: 1.5V, 2.5V and 3.3V. Leave blank for adjustable version (1.3 to 5.7V). Contact factory for additional voltage options. ABSOLUTE MAXIMUM RATINGS Parameter Input Supply Voltage Power Dissipation Thermal Resistance Junction to Case Symbol Maximum Units VIN PD JC JA TJ TSTG TLEAD 7 Internally Limited 2 50 0 to 125 -65 to 150 260 V W C/W C/W C C C PIN CONFIGURATIONS Thermal Resistance Junction to Ambient Operating Junction Temperature Range Storage Temperature Range Lead Temperature (Soldering) 10 Sec. 1 (c) 1999 SEMTECH CORP. 652 MITCHELL ROAD NEWBURY PARK CA 91320 7.5 AMP POSITIVE VOLTAGE REGULATOR June 7, 1999 EZ1083 EZ1083B 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 Test Conditions Parameter Output Voltage EZ1083-X.X Reference Voltage EZ1083 Reference Voltage EZ1083B Line Regulation (1) (1) (1) (1) Test Limits TJ (5) Symbol VO VREF VREF REG(LINE) REG(LOAD) VD VIN 5V IO 0mA Min 0.99lVOl 0.98lVOl 1.238 1.225 1.233 1.220 Typ VO VO 1.250 1.250 1.250 1.250 0.015 0.035 0.05 0.2 1 1.10 1.20 Max 1.01lVOl 1.02lVOl 1.262 1.275 1.267 1.280 0.2 0.2 0.3 0.4 Units V 25C O.T. 5V 10mA 25C O.T. V 5V 10mA 25C O.T. V 10mA 25C O.T. % Load Regulation (1) 5V 25C O.T. % Dropout Voltage (2) 25C O.T. V 1.30 1.45 A 14 mA %/C A 90 EZ1083, EZ1083-X.X EZ1083B Current Limit Quiescent Current Fixed Voltage Version Temperature Coefficient Adjust Pin Current ICL IQ TC IADJ 5V O.T. O.T. O.T. 25C O.T. 7.5 9.5 12 0.005 55 Adjust Pin Current Change Temperature Stability Minimum Load Current Adj Voltage Version RMS Output Noise (3) (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 5 A % 10 mA %VO dB Ripple Rejection Ratio 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. 2 (c) 1999 SEMTECH CORP. 652 MITCHELL ROAD NEWBURY PARK CA 91320 7.5 AMP POSITIVE VOLTAGE REGULATOR June 7, 1999 EZ1083 EZ1083B TYPICAL APPLICATIONS FIXED VOLTAGE REGULATOR (1)(2) ADJUSTABLE VOLTAGE REGULATOR (1)(2) EZ1083/EZ1083B 3 (c) 1999 SEMTECH CORP. 652 MITCHELL ROAD NEWBURY PARK CA 91320 7.5 AMP POSITIVE VOLTAGE REGULATOR June 7, 1999 EZ1083 EZ1083B OUTLINE - TO-220 4 (c) 1999 SEMTECH CORP. 652 MITCHELL ROAD NEWBURY PARK CA 91320 |
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