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LT1587CM-3.45#TR

Description
Low Dropout Regulator LT1587 - 7A, 4.6A, 3A Low Dropout Fast Response Positive Regulators Adjustable and Fixed
CategoryPower/power management    The power supply circuit   
File Size215KB,16 Pages
ManufacturerADI
Websitehttps://www.analog.com
Download Datasheet Parametric View All

LT1587CM-3.45#TR Overview

Low Dropout Regulator LT1587 - 7A, 4.6A, 3A Low Dropout Fast Response Positive Regulators Adjustable and Fixed

LT1587CM-3.45#TR Parametric

Parameter NameAttribute value
Is it Rohs certified?incompatible
MakerADI
package instructionTO-263,
Reach Compliance Codenot_compliant
ECCN codeEAR99
Maximum drop-back voltage 11.3 V
Maximum input voltage7 V
Minimum input voltage4.75 V
JESD-30 codeR-PSSO-G2
JESD-609 codee0
length10.2235 mm
Humidity sensitivity level1
Number of functions1
Number of terminals2
Working temperatureTJ-Max125 °C
Working temperature TJ-Min
Maximum output current 13 A
Maximum output voltage 13.519 V
Minimum output voltage 13.381 V
Nominal output voltage 13.45 V
Package body materialPLASTIC/EPOXY
encapsulated codeTO-263
Package shapeRECTANGULAR
Package formSMALL OUTLINE
Peak Reflow Temperature (Celsius)235
Certification statusNot Qualified
Regulator typeFIXED POSITIVE SINGLE OUTPUT LDO REGULATOR
Maximum seat height4.572 mm
surface mountYES
Terminal surfaceTin/Lead (Sn/Pb)
Terminal formGULL WING
Terminal pitch2.54 mm
Terminal locationSINGLE
Maximum time at peak reflow temperature20
width8.89 mm
LT1584/LT1585/LT1587
7A, 4.6A, 3A Low Dropout
Fast Response
Positive Regulators
Adjustable and Fixed
FEATURES
s
s
s
s
s
s
DESCRIPTIO
Fast Transient Response
Guaranteed Dropout Voltage at Multiple Currents
Load Regulation: 0.05% Typical
Trimmed Current Limit
On-Chip Thermal Limiting
Standard 3-Pin Power Package
APPLICATIO S
s
s
s
s
s
s
Pentium
TM
Processor Supplies
PowerPC
TM
Supplies
Other 2.5V to 3.6V Microprocessor Supplies
Low Voltage Logic Supplies
Battery-Powered Circuitry
Post Regulator for Switching Supply
Adjustable
3.3V Fixed
3.38V Fixed
3.45V Fixed
3.6V Fixed
The LT
®
1584/LT1585/LT1587 are low dropout three-
terminal regulators with 7A, 4.6A and 3A output current
capability, respectively. Design has been optimized for low
voltage applications where transient response and mini-
mum input voltage are critical. Similar to the LT1083/4/5
family, it has lower dropout voltage and faster transient
response. These improvements make it ideal for low volt-
age microprocessor applications requiring a regulated
2.5V to 3.6V output with an input supply below 7V.
Current limit is trimmed to ensure specified output current
and controlled short-circuit current. On-chip thermal lim-
iting provides protection against any combination of over-
load that would create excessive junction temperatures.
The LT1585/LT1587 are available in both the through-hole
and surface mount versions of the industry standard 3-pin
TO-220 power package. The LT1584 is available in the
through-hole 3-pin TO-220 power package.
, LTC and LT are registered trademarks of Linear Technology Corporation.
Pentium is a trademark of Intel Corporation. PowerPC is a trademark of IBM Corporation.
LT1585/7CM, LT1584/5/7CT
LT1585/7CM-3.3, LT1584/5/7CT-3.3
LT1585CM-3.38, LT1584/5CT-3.38
LT1585/7CM-3.45, LT1584/5/7CT-3.45
LT1585/7CM-3.6, LT1584/5/7CT-3.6
TYPICAL APPLICATIO
LT1584-3.3
LT1585-3.3
LT1587-3.3
C1
10µF
Dropout Voltage vs Output Current
1.5
1.4
3.3V, 7A, 4.6A, 3A Regulator
INPUT/OUTPUT DIFFERENTIAL (V)
V
IN
4.75V
3.3V
7A, 4.6A, 3A
C2*
SOLID
TANTALUM
1.3
1.2
1.1
1.0
0.9
0.8
0.7
0.6
0.5
0
OUTPUT CURRENT (A)
1585 TA02
+
+
* REQUIRED FOR STABILITY
LT1584: C2 = 22µF,
LT1585/LT1587: C2 = 10µF
1585 TA01
NOTE: MICROPROCESSOR APPLICATIONS WITH LOAD TRANSIENTS OF 3.8A REQUIRE
OUTPUT DECOUPLING CAPACITANCE > 1300µF ON FIXED VOLTAGE PARTS TO ACHIEVE
< 50mV OF DEVIATION FROM NOMINAL OUTPUT. CONSULT FACTORY FOR DETAILS
U
I
FULL LOAD
158457a
U
U
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