Datasheet EZ1083CT-3.3, EZ1083CT-2.5, EZ1083CT-1.5, EZ1083CT, EZ1083BCT Datasheet (Semtech Corporation)
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© 1999 SEMTECH CORP. 652 MITCHELL ROAD NEWBURY PARK CA 91320
7.5 AMP POSITIVE
VOLTAGE REGULATOR
EZ1083
EZ1083B
June 7, 1999
1
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 90µA over temperature
•
Fixed/adjustable output voltage (EZ1083)
•
Line regulation typically 0.015%
•
Load regulation typically 0.05%
•
TO-220 package
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.
TEL:805-498-2111 FAX:805-498-3804 WEB:http://www.semtech.com
BLOCK DIAGRAM
APPLICATIONS
•
High current microprocessor supplies
•
Post regulators
ABSOLUTE MAXIMUM RATINGS
Parameter Symbol Maximum Units
Input Supply Voltage V
IN
7V
Power Dissipation
P
D
Internally
Limited
W
Thermal Resistance
Junction to Case
θ
JC
2°C/W
Thermal Resistance
Junction to Ambient
θ
JA
50 °C/W
Operating Junction
Temperature Range
T
J
0 to 125 °C
Storage Temperature
Range
T
STG
-65 to 150 °C
Lead Temperature
(Soldering) 10 Sec.
T
LEAD
260 °C
PIN CONFIGURATIONS
ORDERING INFORMATION
DEVICE PACKAGE V
OUT
VOLTS
EZ1083CT-X.X
EZ1083BCT
TO-220 See Note (1)
1.30 to 5.7
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.
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© 1999 SEMTECH CORP. 652 MITCHELL ROAD NEWBURY PARK CA 91320
7.5 AMP POSITIVE
VOLTAGE REGULATOR
EZ1083
EZ1083B
June 7, 1999
2
ELECTRICAL CHARACTERISTICS
Test Conditions Test Limits
Parameter Symbol V
IN
I
O
T
J
(5)
Min Typ Max Units
Output Voltage
(1)
V
O
5V 0mA 25°C 0.99lVOlVO1.01lVOlV
EZ1083-X.X O.T. 0.98lV
O
lVO1.02lVOl
Reference Voltage
(1)
V
REF
5V 10mA 25°C 1.238 1.250 1.262 V
EZ1083 O.T. 1.225 1.250 1.275
Reference Voltage
(1)
V
REF
5V 10mA 25°C 1.233 1.250 1.267 V
EZ1083B O.T. 1.220 1.250 1.280
Line Regulation
(1)
REG
(LINE)
10mA 25°C 0.015 0.2 %
O.T. 0.035 0.2
Load Regulation
(1)
REG
(LOAD)
5V 25°C 0.05 0.3 %
O.T. 0.2 0.4
Dropout Voltage
(2)
V
D
25°C 1 V
EZ1083, EZ1083-X.X O.T. 1.10 1.30
EZ1083B 1.20 1.45
Current Limit I
CL
O.T. 7.5 9.5 A
Quiescent Current
Fixed Voltage Version
I
Q
5V O.T. 12 14 mA
Temperature Coefficient T
C
O.T. 0.005 %/°C
Adjust Pin Current I
ADJ
25°C 55 µA
O.T. 90
Adjust Pin Current
Change
∆
I
ADJ
O.T. 0.2 5 µA
Temperature Stability T
S
5V 0.5A O.T. 0.5 %
Minimum Load Current
Adj Voltage Version
I
O
5V O.T. 5 10 mA
RMS Output Noise
(3)
V
N
25°C 0.003 %V
O
Ripple Rejection Ratio
(4)
R
A
5V 7.5A O.T. 60 72 dB
Unless otherwise specified, Adj VIN = 2.75V to 7.0V and Adj IO = 10mA to 7.5A;
Fixed V
IN
= 4.75 to 7.0V and Fixed IO = 0 mA to 7.5A
NOTES:
(1) Low duty cycle pulse testing with Kelvin connections required.
(2) ∆V
OUT
, ∆V
REF
= 1%.
(3)
Bandwidth of 10 Hz to 10 kHz.
(4) 120 Hz input ripple (C
ADJ
for ADJ = 25µF).
(5) Over Temp. (O.T.) = over specified operating junction temperature range.
Page 3
© 1999 SEMTECH CORP. 652 MITCHELL ROAD NEWBURY PARK CA 91320
7.5 AMP POSITIVE
VOLTAGE REGULATOR
EZ1083
EZ1083B
June 7, 1999
3
TYPICAL APPLICATIONS
FIXED VOLTAGE REGULATOR
(1)(2)
ADJUSTABLE VOLTAGE REGULATOR
(1)(2)
EZ1083/EZ1083B
Page 4
© 1999 SEMTECH CORP. 652 MITCHELL ROAD NEWBURY PARK CA 91320
7.5 AMP POSITIVE
VOLTAGE REGULATOR
EZ1083
EZ1083B
June 7, 1999
4
OUTLINE - TO-220
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