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LT1585CT-3.3

Description
LDO Regulator Pos 3.3V 4.6A 3-Pin(3+Tab) TO-220
File Size217KB,16 Pages
ManufacturerADI
Websitehttps://www.analog.com
Download Datasheet Download user manual Parametric View All

LT1585CT-3.3 Overview

LDO Regulator Pos 3.3V 4.6A 3-Pin(3+Tab) TO-220

LT1585CT-3.3 Parametric

Parameter NameAttribute value
EU restricts the use of certain hazardous substancesNot Compliant
ECCN (US)EAR99
Part StatusUnconfirmed
HTS8542.39.00.01
SVHCYes
SVHC Exceeds ThresholdYes
TypeLDO
Number of Outputs1
PolarityPositive
Output TypeFixed
Output Voltage (V)3.3
Maximum Output Current (A)4.6
Minimum Input Voltage (V)2.35
Maximum Input Voltage (V)7
Junction to Ambient50°C/W
Junction to Case3°C/W
Special FeaturesShort Circuit Protection|Thermal Protection|Safe Area Protection
Minimum Operating Temperature (°C)0
Maximum Operating Temperature (°C)150
Supplier Temperature GradeCommercial
Supplier PackageTO-220
Pin Count3
Standard Package NameTO-220
MountingThrough Hole
Package Height9.4(Max)
Package Length10.54(Max)
Package Width4.57(Max)
PCB changed3
TabTab
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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