3.0 AMP POSITIVE
VOLTAGE REGULATOR
EZ1085
EZ1085B
TEL:805-498-2111 FAX:805-498-3804 WEB:http://www.semtech.com
June 17, 1999
DESCRIPTION
FEATURES
•
Low dropout performance,
The EZ1085 series of high performance positive
voltage regulators are designed for use in applications
requiring low dropout performance at full rated current.
Additionally, the EZ1085 series provides excellent
regulation over variations in line, load and temperature.
1.3V max. for EZ1085,
1.45V max. for EZ1085B
•
•
•
Full current rating over line and temperature
Fast transient response
±2% total output regulation over line, load
and temperature (±2.4% for EZ1085B)
Adjust pin current max 90µA over temperature
Fixed/adjustable output voltage (EZ1085)
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 EZ1085 has both fixed and
adjustable voltage options, while the EZ1085B 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
EZ1085CM-X.X
EZ1085BCM
See Note (1)
1.30 to 5.7
TO-263(2)
TO-220
APPLICATIONS
•
•
•
Post regulators
Processor I/O supplies
Battery chargers
EZ1085CT-X.X
EZ1085BCT
See Note (1)
1.30 to 5.7
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.
BLOCK DIAGRAM
(2) Add suffix ‘TR’ for tape and reel (TO-263).
ABSOLUTE MAXIMUM RATINGS
Parameter
Symbol Maximum Units
Input Supply Voltage
Power Dissipation
VIN
7
V
Internally
Limited
PD
W
Thermal Resistance
Junction to Case
TO-220
PIN CONFIGURATIONS
3
3
°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
