EZ1587 Datasheet, PDF (1/5 Pages) Semtech Corporation – 3.0 AMP LOW DROPOUT POSITIVE VOLTAGE REGULATORS

3.0 AMP LOW DROPOUT
POSITIVE VOLTAGE REGULATORS
EZ1587
November 22, 1999
TEL:[phone] FAX:[phone] WEB:http://www.semtech.com
DESCRIPTION
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.
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.
APPLICATIONS
• Pentium^® Processor supplies
• PowerPC™ supplies
• Other 1.3V to 5.7V microprocessor supplies
• Low voltage logic supplies
• Battery-powered circuitry
• Post regulator for switching supply
BLOCK DIAGRAM
FEATURES
• 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
• 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
ORDERING INFORMATION
DEVICE
PACKAGE
EZ1587CT-X.X
EZ1587CM-X.X
TO-220
TO-263⁽²⁾
V_OUT VOLTS
See Note (1)
See Note (1)
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.
(2) Add suffix ‘TR’ for tape and reel (TO-263).
PIN CONFIGURATIONS
© 1999 SEMTECH CORP.
ABSOLUTE MAXIMUM RATINGS
Parameter
Symbol Maximum Units
Input Supply Voltage V_IN
Power Dissipation
P_D
Thermal Resistance
Junction to Case
TO-220
θ_JC
TO-263
Thermal Resistance
Junction to Ambient
TO-220
θ_JA
TO-263
Operating Junction
Temperature Range
T_J
7
V
Internally
Limited
W
3
°C/W
3
50
60
0 to 125
°C/W
°C
Storage
Temperature Range
T_STG -65 to 150 °C
Lead Temperature
(Soldering) 10 Sec
T_LEAD
260
°C
Pentium Processor is a trademark of Intel Corp. PowerPC is a trademark of IBM
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