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LT1587CM-1.5#TRPBF

Description
LDO Voltage Regulators 1.5V L/Droput HS 3A Linear Reg
CategoryPower/power management    The power supply circuit   
File Size190KB,8 Pages
ManufacturerADI
Websitehttps://www.analog.com
Download Datasheet Parametric Compare View All

LT1587CM-1.5#TRPBF Overview

LDO Voltage Regulators 1.5V L/Droput HS 3A Linear Reg

LT1587CM-1.5#TRPBF Parametric

Parameter NameAttribute value
Brand NameAnalog Devices Inc
Is it lead-free?Contains lead
Is it Rohs certified?incompatible
MakerADI
package instructionTO-263,
Contacts3
Manufacturer packaging code05-08-1460
Reach Compliance Codenot_compliant
JESD-30 codeR-PSSO-G2
JESD-609 codee3
length10.2235 mm
Humidity sensitivity level1
Number of functions1
Number of terminals2
Maximum output current 13 A
Nominal output voltage 11.5 V
Package body materialPLASTIC/EPOXY
encapsulated codeTO-263
Package shapeRECTANGULAR
Package formSMALL OUTLINE
Peak Reflow Temperature (Celsius)250
Certification statusNot Qualified
Regulator typeFIXED POSITIVE SINGLE OUTPUT LDO REGULATOR
Maximum seat height4.572 mm
surface mountYES
Terminal surfaceTin (Sn)
Terminal formGULL WING
Terminal pitch2.54 mm
Terminal locationSINGLE
Maximum time at peak reflow temperatureNOT SPECIFIED
width8.89 mm
LT1587-1.5
Fixed 1.5V, 3A
Low Dropout
Fast Response
GTL+ Regulator
FEATURES
s
s
s
s
s
DESCRIPTION
The LT
®
1587-1.5 is a low dropout 3-terminal regulator
with a fixed 1.5V output voltage and 3A output current
capability. The design is optimized for low voltage applica-
tions where transient response and minimum input voltage
are critical. Similar to the LT1085, it has lower dropout and
faster transient response. These improvements make it
ideal for low voltage microprocessor applications, espe-
cially as the regulator in an Intel Pentium Pro processor
GTL+ supply.
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 creates excessive junction temperatures.
The LT1587-1.5 is available in both the through-hole and
surface mount versions of the industry standard 3-pin
TO-220 power package.
, LTC and LT are registered trademarks of Linear Technology Corporation.
Pentium is a registered trademark of Intel Corporation
Fast Transient Response
Guaranteed Dropout Voltage at Multiple Currents
Load Regulation: 0.05% Typ
Trimmed Current Limit
On-Chip Thermal Limiting
APPLICATIONS
s
s
s
Intel Pentium
®
Pro Processor GTL+ Supply
Low Voltage Logic Supplies
Battery-Powered Circuitry
TYPICAL APPLICATION
Intel Pentium Pro Processor GTL+ Supply
3.3V
LT1587-1.5
V
IN
V
OUT
GND
V
TT
= 1.5V
3A
C4 TO
C6
1µF
R1
75Ω
R2
150Ω
R5
100Ω
C13
0.1µF
R7
100Ω
R8
100Ω
R6
100Ω
V
REF
C14
0.1µF
R3
75Ω
R4
150Ω
V
TT
= 1.5V
3A
LT1587-1.5
V
OUT
V
IN
GND
C10 TO C12
1µF
3.3V
+
C1
100µF
10V
AVX TPS
+
C2, C3
100µF
10V
AVX TPS
V
REF
RX
TX
Q1
Q2
RX
RX
NOTE: LTC RECOMMENDS SEPARATE
V
TT
GENERATORS AT EACH BUS END
TO ENSURE CURRENT SHARING
BETWEEN THE REGULATORS AND TO
MINIMIZE V
TT
DISTRIBUTION DROPS
LT1587 • TA01
TX
Q3
Q4
TX
142 TOTAL SIGNAL LINES
U
U
U
+
C8, C9
100µF
10V
AVX TPS
+
C7
100µF
10V
AVX TPS
RX
TX
1

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Description LDO Voltage Regulators 1.5V L/Droput HS 3A Linear Reg LDO Voltage Regulators LT1587-1.5 - Fixed 1.5V, 3A Low Dropout Fast Response GTL+ Regulator LDO Voltage Regulators LT1587-1.5 - Fixed 1.5V, 3A Low Dropout Fast Response GTL+ Regulator Low Dropout Voltage Regulator 1.5VL/Dropout HS 3A Linear Reg Low Dropout Regulator LT1587-1.5 - Fixed 1.5V, 3A Low Dropout Fast Response GTL+ Regulator
Is it Rohs certified? incompatible incompatible incompatible conform to incompatible
package instruction TO-263, PLASTIC, D2PAK-3 PLASTIC, D2PAK-3 PLASTIC, D2PAK-3 TO-220,
Reach Compliance Code not_compliant not_compliant compliant not_compliant not_compliant
JESD-30 code R-PSSO-G2 R-PSSO-G2 R-PSSO-G2 R-PSSO-G2 R-PSFM-T3
JESD-609 code e3 e0 e0 e3 e0
Humidity sensitivity level 1 1 1 1 1
Number of functions 1 1 1 1 1
Number of terminals 2 2 2 2 3
Maximum output current 1 3 A 3 A 3 A 3 A 3 A
Nominal output voltage 1 1.5 V 1.5 V 1.5 V 1.5 V 1.5 V
Package body material PLASTIC/EPOXY PLASTIC/EPOXY PLASTIC/EPOXY PLASTIC/EPOXY PLASTIC/EPOXY
encapsulated code TO-263 TO-263 TO-263 TO-263 TO-220
Package shape RECTANGULAR RECTANGULAR RECTANGULAR RECTANGULAR RECTANGULAR
Package form SMALL OUTLINE SMALL OUTLINE SMALL OUTLINE SMALL OUTLINE FLANGE MOUNT
Peak Reflow Temperature (Celsius) 250 235 235 260 NOT SPECIFIED
Certification status Not Qualified Not Qualified Not Qualified Not Qualified Not Qualified
Regulator type FIXED POSITIVE SINGLE OUTPUT LDO REGULATOR FIXED POSITIVE SINGLE OUTPUT LDO REGULATOR FIXED POSITIVE SINGLE OUTPUT LDO REGULATOR FIXED POSITIVE SINGLE OUTPUT LDO REGULATOR FIXED POSITIVE SINGLE OUTPUT LDO REGULATOR
surface mount YES YES YES YES NO
Terminal surface Tin (Sn) Tin/Lead (Sn/Pb) - with Nickel (Ni) barrier Tin/Lead (Sn/Pb) MATTE TIN Tin/Lead (Sn/Pb) - with Nickel (Ni) barrier
Terminal form GULL WING GULL WING GULL WING GULL WING THROUGH-HOLE
Terminal location SINGLE SINGLE SINGLE SINGLE SINGLE
Maximum time at peak reflow temperature NOT SPECIFIED 20 20 30 NOT SPECIFIED
Maker ADI ADI ADI ADI -
length 10.2235 mm 10.2235 mm 10.2235 mm 10.2235 mm -
Maximum seat height 4.572 mm 4.572 mm 4.572 mm 4.572 mm -
Terminal pitch 2.54 mm 2.54 mm 2.54 mm 2.54 mm -
width 8.89 mm 8.89 mm 8.89 mm 8.89 mm -
ECCN code - EAR99 EAR99 - EAR99
Is Samacsys - N - N N
Maximum drop-back voltage 1 - 1.3 V 1.3 V - 1.3 V
Maximum input voltage - 7 V 7 V - 7 V
Minimum input voltage - 3 V 3 V - 3 V
Working temperatureTJ-Max - 125 °C 125 °C - 125 °C
technology - BIPOLAR BIPOLAR - BIPOLAR
Base Number Matches - 1 - 1 1
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