4.6 AMP LOW DROPOUT
POSITIVE VOLTAGE REGULATORS
EZ1585
TEL:805-498-2111 FAX:805-498-3804 WEB:http://www.semtech.com
November 22, 1999
DESCRIPTION
FEATURES
The EZ1585 series of high performance positive
voltage regulators are designed for use in applications
requiring low dropout performance at full rated
current. Additionally, the EZ1585 series provides
excellent regulation over variations in line, load and
temperature.
•
Low dropout performance,
1.3V max. for EZ1585
Full current rating over line and temperature
Fast transient response
±2% total output regulation over line, load
and temperature
•
•
•
•
•
•
•
•
Adjust pin current max 90µA over temperature
Fixed/adjustable output voltage
Line regulation typically 0.015%
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 EZ1585 series
are three terminal regulators with fixed and adjustable
voltage options available in popular packages.
ORDERING INFORMATION
DEVICE
PACKAGE
TO-263(2)
VOUT VOLTS
APPLICATIONS
•
•
•
•
•
•
Pentium® Processor supplies
PowerPC™ supplies
Other 2.5V to 3.6V microprocessor supplies
Low voltage logic supplies
Battery-powered circuitry
Post regulator for switching supply
EZ1585CM-X.X
See Note (1)
EZ1585CT-X.X
TO-220
See Note (1)
Notes:
(1) Where X.X denotes voltage options. Available
voltages are: 1.5V, 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
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
Pentium Processor is a trademark of Intel Corp. PowerPC is a trademark of IBM Corp.
© 1999 SEMTECH CORP.
652 MITCHELL ROAD NEWBURY PARK CA 91320
