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10.0 AMP POSITIVE VOLTAGE REGULATOR
April 13, 1998
EZ1082
TEL:805-498-2111 FAX:805-498-3804 WEB:http://www.semtech.com
DESCRIPTION
The EZ1082 series of high performance positive voltage regulators are designed for use in applications requiring low dropout performance at full rated current. Additionally, the EZ1082 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 EZ1082 series are three terminal regulators with fixed and adjustable voltage options available in the popular TO-220 package.
FEATURES *= Low dropout performance, 1.3V max. *= Full current rating over line and temperature *= Fast transient response *= 2% total output regulation over line, load *= *= *= *= *=
and temperature Adjust pin current max 90A over temperature Fixed/adjustable output voltage Line regulation typically 0.015% Load regulation typically 0.05% TO-220 package
ORDERING INFORMATION
DEVICE PACKAGE TO-220 VOUT VOLTS See Note (1)
APPLICATIONS *= High current microprocessor supplies *= Post regulators BLOCK DIAGRAM
EZ1082CT-X.X
Note: (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.
ABSOLUTE MAXIMUM RATINGS
Parameter Input Supply Voltage Power Dissipation Thermal Resistance Junction to Case Symbol VIN PD JC JA TJ TSTG TLEAD Maximum 7 Internally Limited 1.6 50 0 to 125 -65 to 150 260 Units 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) 1998 SEMTECH CORP. 652 MITCHELL ROAD NEWBURY PARK CA 91320
10.0 AMP POSITIVE VOLTAGE REGULATOR
April 13, 1998
EZ1082
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 Test Conditions Parameter Output Voltage
(1)
Test Limits TJ
(4)
Symbol VO VREF REG(LINE) REG(LOAD) VD ICL IQ TC IADJ IADJ TS IO VN
(3)
VIN 5V
IO 0mA
Min 0.99lVOl 0.98lVOl 1.238 1.225
Typ VO VO 1.250 1.250 0.015 0.035 0.05 0.2 1.2 1.2
Max 1.01lVOl 1.02lVOl 1.262 1.275 0.2 0.2 0.3 0.4
Units V
25C O.T.
Fixed Voltage Version Reference Voltage(1) Adj Voltage Version Line Regulation
(1)
5V
10mA
25C O.T.
V
10mA
25C O.T.
%
Load Regulation
(1)
5V
25C O.T.
%
Dropout Voltage VOUT, VREF = 1% Current Limit Quiescent Current Fixed Voltage Version Temperature Coefficient Adjust Pin Current
25C O.T. O.T. 5V O.T. O.T. 25C O.T. 10.0
V 1.3 A 14 mA %/C A 90
12 12 0.005 55
Adjust Pin Current Change Temperature Stability Minimum Load Current Adj Voltage Version RMS Output Noise(2) Ripple Rejection Ratio
O.T. 5V 5V 0.5A O.T. O.T. 25C 5V 10.0A O.T. 60
0.2 0.5 5 0.003 72
5
A %
10
mA %VO dB
RA
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 = 25F). (4) Over Temp. (O.T.) = over specified operating junction temperature range.
2 (c) 1998 SEMTECH CORP. 652 MITCHELL ROAD NEWBURY PARK CA 91320
10.0 AMP POSITIVE VOLTAGE REGULATOR
April 13, 1998
EZ1082
TYPICAL APPLICATIONS
FIXED VOLTAGE REGULATOR
(1)(2)
ADJUSTABLE VOLTAGE REGULATOR
(1)(2)
3 (c) 1998 SEMTECH CORP. 652 MITCHELL ROAD NEWBURY PARK CA 91320
10.0 AMP POSITIVE VOLTAGE REGULATOR
April 13, 1998
EZ1082
OUTLINE - TO-220
4 (c) 1998 SEMTECH CORP. 652 MITCHELL ROAD NEWBURY PARK CA 91320

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