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LT3479EFE#TR

Description
Conv DC-DC 2.5V to 24V Step Up Single-Out 1.235V to 42V 6A 16-Pin TSSOP EP T/R
CategoryPower/power management    The power supply circuit   
File Size247KB,20 Pages
ManufacturerADI
Websitehttps://www.analog.com
Download Datasheet Parametric Compare View All

LT3479EFE#TR Overview

Conv DC-DC 2.5V to 24V Step Up Single-Out 1.235V to 42V 6A 16-Pin TSSOP EP T/R

LT3479EFE#TR Parametric

Parameter NameAttribute value
Is it Rohs certified?incompatible
MakerADI
package instructionHTSSOP,
Reach Compliance Codenot_compliant
ECCN codeEAR99
Analog Integrated Circuits - Other TypesSWITCHING REGULATOR
control modeCURRENT-MODE
Control TechnologyPULSE WIDTH MODULATION
Maximum input voltage24 V
Minimum input voltage2.5 V
Nominal input voltage2.5 V
JESD-30 codeR-PDSO-G16
JESD-609 codee0
length5 mm
Humidity sensitivity level1
Number of functions1
Number of terminals16
Maximum operating temperature70 °C
Minimum operating temperature
Maximum output current6 A
Package body materialPLASTIC/EPOXY
encapsulated codeHTSSOP
Package shapeRECTANGULAR
Package formSMALL OUTLINE, HEAT SINK/SLUG, THIN PROFILE, SHRINK PITCH
Peak Reflow Temperature (Celsius)235
Certification statusNot Qualified
Maximum seat height1.1 mm
surface mountYES
Switch configurationBOOST
Maximum switching frequency4100 kHz
Temperature levelCOMMERCIAL
Terminal surfaceTin/Lead (Sn/Pb)
Terminal formGULL WING
Terminal pitch0.65 mm
Terminal locationDUAL
Maximum time at peak reflow temperature20
width4.4 mm
Base Number Matches1
LT3479
3A, Full Featured DC/DC
Converter with Soft-Start
and Inrush Current Protection
FEATURES
n
n
n
n
n
n
n
n
n
DESCRIPTION
The LT
®
3479 is a current mode, fixed frequency step-up
DC/DC converter with an internal 3A, 42V switch. Efficien-
cies of up to 89% can be achieved in typical applications. It
features a programmable soft-start function to limit induc-
tor current during start-up and inrush current protection
to protect the LT3479 during shorts and line transients.
Both inputs of the error amplifier are available to the user
allowing positive and negative output voltages. Through
an external resistor, the user can program the switch-
ing frequency from 200kHz to 3.5MHz. The low profile
(0.75mm) 14-pin, 4mm
×
3mm DFN package provides
excellent thermal performance in a small footprint. The
LT3479 is also available in a thermally enhanced 16-pin
TSSOP package.
L,
LT, LTC, LTM, Linear Technology and the Linear logo are registered trademarks of Linear
Technology Corporation. All other trademarks are the property of their respective owners.
Wide Input Voltage Range: 2.5V to 24V
3A, 42V Internal Switch
High Efficiency Power Conversion: Up to 89%
Soft-Start
Frequency Set by External Resistor: 200kHz to
3.5MHz
Protection Against Input Short Circuits and
Hot Plugging
Low V
CESAT
Switch: 0.3V at 2.5A (Typical)
Capable of Positive and Negative Outputs
Available in Thermally Enhanced 14-Lead
(4mm
×
3mm) DFN and 16-Lead TSSOP Packages
APPLICATIONS
n
n
n
High Power LED Driver
DSL Modems
Distributed Power
TYPICAL APPLICATION
5V to 12V Boost Converter
4.7μH
V
IN
5V
2.2μF
V
IN
V
S
L
SHDN
LT3479
SS
10nF
R
T
GND
17.8k
FBP
V
C
10k
2.2nF
3479 TA01
5V to 12V Efficiency
V
OUT
12V
0.8A
90
85
EFFICIENCY (%)
80
75
70
65
60
200k
SW
FBN
23.2k
V
REF
10μF
0
0.2
0.4
I
OUT
(A)
0.6
0.8
3479 TA02
3479fc
1

LT3479EFE#TR Related Products

LT3479EFE#TR LT3479EDE#PBF LT3479EDE#TR LT3479EDE#TRPBF LT3479EFE#PBF LT3479EFE#TRPBF LT3479EFE
Description Conv DC-DC 2.5V to 24V Step Up Single-Out 1.235V to 42V 6A 16-Pin TSSOP EP T/R Conv DC-DC 2.5V to 24V Step Up Single-Out 1.235V to 42V 6A 14-Pin DFN EP Tube Conv DC-DC 2.5V to 24V Step Up Single-Out 1.235V to 42V 6A 14-Pin DFN EP T/R Conv DC-DC 2.5V to 24V Step Up Single-Out 1.235V to 42V 6A 14-Pin DFN EP T/R Conv DC-DC 2.5V to 24V Step Up Single-Out 1.235V to 42V 6A 16-Pin TSSOP EP Tube Conv DC-DC 2.5V to 24V Step Up Single-Out 1.235V to 42V 6A 16-Pin TSSOP EP T/R Conv DC-DC 2.5V to 24V Step Up Single-Out 1.235V to 42V 6A 16-Pin TSSOP EP
Is it Rohs certified? incompatible conform to incompatible conform to conform to conform to incompatible
Maker ADI ADI ADI ADI ADI ADI ADI
package instruction HTSSOP, HVSON, HVSON, HVSON, HTSSOP, HTSSOP, HTSSOP,
Reach Compliance Code not_compliant compliant not_compliant compliant compliant compliant not_compliant
Analog Integrated Circuits - Other Types SWITCHING REGULATOR SWITCHING REGULATOR SWITCHING REGULATOR SWITCHING REGULATOR SWITCHING REGULATOR SWITCHING REGULATOR SWITCHING REGULATOR
control mode CURRENT-MODE CURRENT-MODE CURRENT-MODE CURRENT-MODE CURRENT-MODE CURRENT-MODE CURRENT-MODE
Control Technology PULSE WIDTH MODULATION PULSE WIDTH MODULATION PULSE WIDTH MODULATION PULSE WIDTH MODULATION PULSE WIDTH MODULATION PULSE WIDTH MODULATION PULSE WIDTH MODULATION
Maximum input voltage 24 V 24 V 24 V 24 V 24 V 24 V 24 V
Minimum input voltage 2.5 V 2.5 V 2.5 V 2.5 V 2.5 V 2.5 V 2.5 V
Nominal input voltage 2.5 V 2.5 V 2.5 V 2.5 V 2.5 V 2.5 V 2.5 V
JESD-30 code R-PDSO-G16 R-PDSO-N14 R-PDSO-N14 R-PDSO-N14 R-PDSO-G16 R-PDSO-G16 R-PDSO-G16
JESD-609 code e0 e3 e0 e3 e3 e3 e0
length 5 mm 4 mm 4 mm 4 mm 5 mm 5 mm 5 mm
Humidity sensitivity level 1 1 1 1 1 1 1
Number of functions 1 1 1 1 1 1 1
Number of terminals 16 14 14 14 16 16 16
Maximum operating temperature 70 °C 70 °C 70 °C 70 °C 70 °C 70 °C 70 °C
Maximum output current 6 A 6 A 6 A 6 A 6 A 6 A 6 A
Package body material PLASTIC/EPOXY PLASTIC/EPOXY PLASTIC/EPOXY PLASTIC/EPOXY PLASTIC/EPOXY PLASTIC/EPOXY PLASTIC/EPOXY
encapsulated code HTSSOP HVSON HVSON HVSON HTSSOP HTSSOP HTSSOP
Package shape RECTANGULAR RECTANGULAR RECTANGULAR RECTANGULAR RECTANGULAR RECTANGULAR RECTANGULAR
Package form SMALL OUTLINE, HEAT SINK/SLUG, THIN PROFILE, SHRINK PITCH SMALL OUTLINE, HEAT SINK/SLUG, VERY THIN PROFILE SMALL OUTLINE, HEAT SINK/SLUG, VERY THIN PROFILE SMALL OUTLINE, HEAT SINK/SLUG, VERY THIN PROFILE SMALL OUTLINE, HEAT SINK/SLUG, THIN PROFILE, SHRINK PITCH SMALL OUTLINE, HEAT SINK/SLUG, THIN PROFILE, SHRINK PITCH SMALL OUTLINE, HEAT SINK/SLUG, THIN PROFILE, SHRINK PITCH
Peak Reflow Temperature (Celsius) 235 260 235 250 260 250 235
Certification status Not Qualified Not Qualified Not Qualified Not Qualified Not Qualified Not Qualified Not Qualified
Maximum seat height 1.1 mm 0.8 mm 0.8 mm 0.8 mm 1.1 mm 1.1 mm 1.1 mm
surface mount YES YES YES YES YES YES YES
Switch configuration BOOST BOOST BOOST BOOST BOOST BOOST BOOST
Maximum switching frequency 4100 kHz 4100 kHz 4100 kHz 4100 kHz 4100 kHz 4100 kHz 4100 kHz
Temperature level COMMERCIAL COMMERCIAL COMMERCIAL COMMERCIAL COMMERCIAL COMMERCIAL COMMERCIAL
Terminal surface Tin/Lead (Sn/Pb) MATTE TIN Tin/Lead (Sn/Pb) MATTE TIN MATTE TIN Matte Tin (Sn) Tin/Lead (Sn/Pb)
Terminal form GULL WING NO LEAD NO LEAD NO LEAD GULL WING GULL WING GULL WING
Terminal pitch 0.65 mm 0.5 mm 0.5 mm 0.5 mm 0.65 mm 0.65 mm 0.65 mm
Terminal location DUAL DUAL DUAL DUAL DUAL DUAL DUAL
Maximum time at peak reflow temperature 20 30 20 NOT SPECIFIED 30 NOT SPECIFIED 20
width 4.4 mm 3 mm 3 mm 3 mm 4.4 mm 4.4 mm 4.4 mm
Base Number Matches 1 1 1 1 1 1 1
Brand Name - Analog Devices Inc - Analog Devices Inc Analog Devices Inc Analog Devices Inc -
Is it lead-free? - Contains lead - Contains lead Contains lead Contains lead -
Contacts - 14 - 14 16 16 -
Manufacturer packaging code - 05-08-1708 - 05-08-1708 05-08-1663 (BC) 05-08-1663 (BC) -
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