4.6 AMP LOW DROPOUT
EZ1585
POSITIVE VOLTAGE REGULATORS
November 22, 1999 TEL:805-498-2111 FAX:805-498-3804 WEB:http://www.semtech.com
DESCRIPTION FEATURES
The EZ1585 series of high performance positive • Low dropout performance,
voltage regulators are designed for use in applications 1.3V max. for EZ1585
requiring low dropout performance at full rated • Full current rating over line and temperature
current. Additionally, the EZ1585 series provides • Fast transient response
excellent regulation over variations in line, load and • ±2% total output regulation over line, load
temperature. and temperature
• Adjust pin current max 90µA over temperature
Outstanding features include low dropout • Fixed/adjustable output voltage
performance at rated current, fast transient response, • Line regulation typically 0.015%
internal current limiting and thermal shutdown • Load regulation typically 0.05%
protection of the output device. The EZ1585 series • TO-220 or TO-263 packages
are three terminal regulators with fixed and adjustable
voltage options available in popular packages.
ORDERING INFORMATION
DEVICE PACKAGE V VOLTS
OUT
APPLICATIONS
(2)
®
EZ1585CM-X.X TO-263 See Note (1)
• Pentium Processor supplies
• PowerPC™ supplies
EZ1585CT-X.X TO-220 See Note (1)
• Other 2.5V to 3.6V microprocessor supplies
• Low voltage logic supplies
Notes:
• Battery-powered circuitry
(1) Where X.X denotes voltage options. Available
• Post regulator for switching supply
voltages are: 1.5V, 2.5V, 3.3V and 3.45V. Leave blank
for adjustable version (1.3 to 5.7V). Contact factory for
BLOCK DIAGRAM
additional voltage options.
(2) Add suffix ‘TR’ for tape and reel (TO-263).
ABSOLUTE MAXIMUM RATINGS
Parameter Symbol Maximum Units
Input Supply Voltage V 7V
IN
Power Dissipation Internally
P W
D
Limited
Thermal Resistance
Junction to Case
PIN CONFIGURATIONS
TO-220 2.5 °C/W
θ
JC
TO-263 2.5
Thermal Resistance
Junction to Ambient
TO-220 50 °C/W
θ
JA
TO-263 60
Operating Junction
T 0 to 125 °C
J
Temperature Range
Storage Temperature
T -65 to 150 °C
STG
Range
Lead Temperature
T 260 °C
LEAD
(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
