5.0 AMP LOW DROPOUT
POSITIVE VOLTAGE REGULATORS
EZ1585B
TEL:805-498-2111 FAX:805-498-3804 WEB:http://www.semtech.com
April 7, 1998
DESCRIPTION
FEATURES
The EZ1585B is a high performance positive voltage
regulator designed for use in applications requiring low
dropout performance at full rated current. Additionally,
the EZ1585B provides excellent regulation over
variations in line, load and temperature.
•= Low dropout performance, 1.3V max.
•= Full current rating over line and temperature
•= Fast transient response
•= ±1.5% total output regulation over line, load and
temperature
•= Adjust pin current max. 100µA over temperature
•= Adjustable output voltage
Outstanding features include low dropout performance
at rated current, fast transient response, internal
current limiting and thermal shutdown protection of the
output device. The EZ1585B has tight tolerance on
reference voltage, ±1% at 25°C and ±1.5% over line,
load and temperature. The EZ1585B is a three
terminal regulator with adjustable output voltage
available in the popular TO-220 package.
•= Line regulation typically 0.015%
•= Load regulation typically 0.05%
•= TO-220 package
APPLICATIONS
•= Pentium® Processor supplies
ORDERING INFORMATION
DEVICE
PACKAGE
VOUT VOLTS
BLOCK DIAGRAM
EZ1585BCT
TO-220
1.30 to 5.7
ABSOLUTE MAXIMUM RATINGS
Parameter
Symbol Maximum Units
Input Supply Voltage
Power Dissipation
VIN
7
V
Internally
Limited
PD
W
Thermal Resistance
Junction to Case
Control
0.7
3.0
°C/W
θJC
Power
PIN CONFIGURATION
Thermal Resistance
Junction to Ambient
50
°C/W
°C
θJA
TJ
Operating Junction
Temperature Range
0 to 125
-65 to 150
260
Storage
Temperature Range
TSTG
TLEAD
°C
Lead Temperature
(Soldering) 10 Sec
°C
1
Pentium Processor is a trademark of Intel Corp.
© 1998 SEMTECH CORP.
652 MITCHELL ROAD NEWBURY PARK CA 91320
