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LT3508 Datasheet(PDF) 2 Page - Linear Technology

Part # LT3508
Description  Dual Monolithic 1.4A Step-Down Switching Regulator
Download  24 Pages
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Manufacturer  LINER [Linear Technology]
Direct Link  http://www.linear.com
Logo LINER - Linear Technology

LT3508 Datasheet(HTML) 2 Page - Linear Technology

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LT3508
2
3508fb
PIN CONFIGURATION
ABSOLUTE MAXIMUM RATINGS
VIN Pin Voltage............................................(–0.3V), 40V
BOOST Pin Voltage ...................................................60V
BOOST Above SW Voltage ........................................30V
SHDN, PG Voltage.....................................................40V
TRACK/SS, FB, RT/SYNC, VC Voltage ..........................6V
Operating Junction Temperature Range (Note 2)
LT3508E............................................. –40°C to 125°C
LT3508I.............................................. –40°C to 125°C
LT3508H ............................................ –40°C to 150°C
(Note 1)
FE PACKAGE
16-LEAD PLASTIC TSSOP
1
2
3
4
5
6
7
8
TOP VIEW
16
15
14
13
12
11
10
9
TRACK/SS1
BOOST1
SW1
VIN1
VIN2
SW2
BOOST2
TRACK/SS2
FB1
VC1
PG1
RT/SYNC
SHDN
PG2
VC2
FB2
17
θJA = 40°C/W, θJC = 10°C/W
EXPOSED PAD (PIN 17) IS GND AND MUST BE SOLDERED TO PCB
24 23 22 21 20 19
7
8
9
TOP VIEW
25
UF PACKAGE
24-LEAD (4mm
4mm) PLASTIC QFN
10 11 12
6
5
4
3
2
1
13
14
15
16
17
18
FB1
TRACK/SS1
GND
GND
GND
GND
FB2
TRACK/SS2
GND
GND
GND
GND
θJA = 40°C/W, θJC = 10°C/W
EXPOSED PAD (PIN 25) IS GND AND MUST BE SOLDERED TO PCB
Storage Temperature Range
QFN.................................................... –65°C to 150°C
TSSOP ............................................... –65°C to 150°C
Lead Temperature (Soldering, 10 sec)
TSSOP .............................................................. 300°C
ORDER INFORMATION
LEAD FREE FINISH
TAPE AND REEL
PART MARKING*
PACKAGE DESCRIPTION
TEMPERATURE RANGE
LT3508EFE#PBF
LT3508EFE#TRPBF
3508FE
16-Lead Plastic TSSOP
–40°C to 125°C
LT3508IFE#PBF
LT3508IFE#TRPBF
3508FE
16-Lead Plastic TSSOP
–40°C to 125°C
LT3508HFE#PBF
LT3508HFE#TRPBF
3508HFE
16-Lead Plastic TSSOP
–40°C to 150°C
LT3508EUF#PBF
LT3508EUF#TRPBF
3508
24-Lead (4mm
× 4mm) Plastic QFN
–40°C to 125°C
LT3508IUF#PBF
LT3508IUF#TRPBF
3508
24-Lead (4mm
× 4mm) Plastic QFN
–40°C to 125°C
LT3508HUF#PBF
LT3508HUF#TRPBF
3508H
24-Lead (4mm
× 4mm) Plastic QFN
–40°C to 150°C
Consult LTC Marketing for parts specified with wider operating temperature ranges.*Temperature grades are identified by a label on the shipping container.
Consult LTC Marketing for information on non-standard lead based finish parts.
For more information on lead free part marking, go to: http://www.linear.com/leadfree/
For more information on tape and reel specifications, go to: http://www.linear.com/tapeandreel/


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