3.0 AMP LOW DROPOUT
POSITIVE VOLTAGE REGULATORS
EZ1587
November 22, 1999
TEL:805-498-2111 FAX:805-498-3804 WEB:http://www.semtech.com
DESCRIPTION
FEATURES
The EZ1587 series of high performance positive
voltage regulators are designed for use in applications
requiring low dropout performance at full rated current.
Additionally, the EZ1587 series provides excellent
regulation over variations in line, load and
temperature.
•
Low dropout performance,
1.3V max. for EZ1587
•
•
•
Full current rating over line and temperature
Fast transient response
±2% total output regulation over line, load
and temperature
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•
•
•
•
Adjust pin current max. 90µA over temperature
Fixed/adjustable output voltage
Line regulation typically 0.005%
Load regulation typically 0.05%
TO-220 or 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 EZ1587 series are three terminal
regulators with fixed and adjustable voltage options
available in popular packages.
ORDERING INFORMATION
APPLICATIONS
DEVICE
EZ1587CT-X.X
EZ1587CM-X.X
PACKAGE
VOUT VOLTS
See Note (1)
See Note (1)
•
•
•
•
•
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Pentium® Processor supplies
PowerPC™ supplies
TO-220
TO-263(2)
Other 1.3V to 5.7V microprocessor supplies
Low voltage logic supplies
Battery-powered circuitry
Post regulator for switching supply
Notes:
(1) Where X.X denotes voltage options. Available
voltages are: 1.5V, 1.8V, 2.5V, 3.3V and 3.45V. 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
PD
7
V
Internally
Limited
W
Thermal Resistance
Junction to Case
TO-220
3
3
°C/W
°C/W
θJC
PIN CONFIGURATIONS
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
Pentium Processor is a trademark of Intel Corp. PowerPC is a trademark of IBM
© 1999 SEMTECH CORP.
652 MITCHELL ROAD NEWBURY PARK CA 91320
