5.0 AMP POSITIVE
VOLTAGE REGULATOR
EZ1084
EZ1084B
TEL:805-498-2111 FAX:805-498-3804 WEB:http://www.semtech.com
June 7, 1999
DESCRIPTION
FEATURES
•
Low dropout performance,
The EZ1084 series of high performance positive
voltage regulators are designed for use in applications
requiring low dropout performance at full rated current.
Additionally, the EZ1084 series provides excellent
regulation over variations in line, load and temperature.
1.3V max. for EZ1084,
1.45V max. for EZ1084B
•
•
•
Full current rating over line and temperature
Fast transient response
±2% total output regulation over line, load
and temperature (±2.4% for EZ1084B)
Adjust pin current max 90µA over temperature
Fixed/adjustable output voltage (EZ1084)
Line regulation typically 0.015%
Load regulation typically 0.05%
TO-220 and TO-263 packages
Outstanding features include low dropout performance
at rated current, fast transient response, internal
current limiting and thermal shutdown protection of the
output device. The EZ1084 has both fixed and
adjustable voltage options, while the EZ1084B is
adjustable only for cost sensitive applications. These
devices are available in the popular TO-220 and TO-
263 packages.
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•
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ORDERING INFORMATION
DEVICE
PACKAGE
VOUT VOLTS
EZ1084CM-X.X
EZ1084BCM
TO-263(2)
See Note (1)
1.30 to 5.7
APPLICATIONS
•
•
High current microprocessor supplies
Post regulators
EZ1084CT-X.X
EZ1084BCT
TO-220
See Note (1)
1.30 to 5.7
BLOCK DIAGRAM
Notes:
(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.
(2) Add suffix ‘TR’ for tape and reel (TO-263).
ABSOLUTE MAXIMUM RATINGS
Parameter
Symbol Maximum Units
Input Supply Voltage
VIN
PD
7
V
Power Dissipation
Internally
Limited
W
Thermal Resistance
Junction to Case
TO-220
PIN CONFIGURATIONS
2.5
2.5
°C/W
°C/W
θJC
TO-263
Thermal Resistance
Junction to Ambient
TO-220
50
60
θJA
TO-263
Operating Junction
Temperature Range
TJ
0 to 125
-65 to 150
260
°C
°C
°C
Storage
Temperature Range
TSTG
TLEAD
Lead Temperature
(Soldering) 10 Sec
1
© 1999 SEMTECH CORP.
652 MITCHELL ROAD NEWBURY PARK CA 91320
