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LT3570 Datasheet(PDF) 2 Page - Linear Technology

Part No. LT3570
Description  1.5A Buck Converter, 1.5A Boost Converter and LDO Controller
Download  20 Pages
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Maker  LINER [Linear Technology]
Homepage  http://www.linear.com
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LT3570 Datasheet(HTML) 2 Page - Linear Technology

 
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LT3570
2
3570fb
ABSOLUTE MAXIMUM RATINGS
VIN1, VIN2, VIN3, VBIAS Voltage ..................................40V
BOOST Voltage .........................................................60V
BOOST Pin Above SW2.............................................25V
NPN_DRV Voltage.......................................................8V
SW1 Voltage .............................................................40V
SHDN1, SHDN2, SHDN3 Voltage ..............................40V
SYNC, RT Voltage........................................................3V
SS1, SS2 Voltage........................................................3V
FB1, FB2, FB3 Voltage...............................................10V
(Note 1)
VC1, VC2 Voltage..........................................................3V
Maximum Junction Temperature........................... 125°C
Operating Temperature Range (Note 2).. –40°C to 125°C
Storage Temperature Range
TSSOP ............................................... –65°C to 150°C
QFN.................................................... –65°C to 125°C
Lead Temperature (Soldering, 10 sec)
TSSOP Only ...................................................... 300°C
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
VIN2
VIN2
SW2
SW1
GND
GND
VC2
SS2
GND
RT
SYNC
SHDN3
TJMAX = 125°C, θJA = 37°C/W
EXPOSED PAD (PIN 25) IS GND, MUST BE SOLDERED TO PCB
FE PACKAGE
20-LEAD PLASTIC TSSOP
1
2
3
4
5
6
7
8
9
10
TOP VIEW
20
19
18
17
16
15
14
13
12
11
FB1
SHDN1
SHDN2
SHDN3
SYNC
RT
SS2
VC2
FB2
FB3
VC1
SS1
VIN1
GND
SW1
SW2
VIN2
BOOST
VIN3
NPN_DRV
21
TJMAX = 125°C, θJA = 38°C/W
EXPOSED PAD (PIN 21) IS GND, MUST BE SOLDERED TO PCB
PIN CONFIGURATION
ORDER INFORMATION
LEAD FREE FINISH
TAPE AND REEL
PART MARKING*
PACKAGE DESCRIPTION
TEMPERATURE RANGE
LT3570EUF#PBF
LT3570EUF#TRPBF
3570
24-Lead (4mm
× 4mm) Plastic QFN
–40°C to 125°C
LT3570IUF#PBF
LT3570IUF#TRPBF
3570
24-Lead (4mm
× 4mm) Plastic QFN
–40°C to 125°C
LT3570EFE#PBF
LT3570EFE#TRPBF
LT3570FE
20-Lead Plastic TSSOP
–40°C to 125°C
LT3570IFE#PBF
LT3570IFE#TRPBF
LT3570FE
20-Lead Plastic TSSOP
–40°C to 125°C
Consult LTC Marketing for parts specified with wider operating temperature ranges. *The temperature grade is 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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