3694(RevA) 查看數據表（PDF） - Linear Technology
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3694 Datasheet PDF : 28 Pages
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LT3694/LT3694-1
ABSOLUTE MAXIMUM RATINGS (Note 1)
VIN, EN/UVLO (Note 6)............................... –0.3V to 70V
BST ...........................................................................55V
BST Above SW..........................................................25V
PGOOD......................................................................16V
TRK/SS, VC, FB, RT, SYNC Pins...................................6V
BIAS, LIM2, LIM3 Pins ...............................................7V
Operating Junction Temperature Range (Notes 2 and 5)
LT3694E............................................. –40°C to 125°C
LT3694I.............................................. –40°C to 125°C
Storage Temperature Range................... –65°C to 150°C
Lead Temperature (Soldering, 10 Sec)
(TSSOP Only) ................................................... 300°C
PIN CONFIGURATION
TOP VIEW
28 27 26 25 24 23
EN/UVLO 1
22 DA
SYNC (CLKOUT) 2
21 BST
PGOOD 3
20 BIAS
RT 4
TRK/SS1 5
29
GND
19 VC1
18 FB1
TRK/SS2 6
17 TRK/SS3
FB2 7
16 FB3
DRV2 8
15 DRV3
9 10 11 12 13 14
UFD PACKAGE
28-LEAD (4mm s 5mm) PLASTIC QFN
θJA = 34°C/W
EXPOSED PAD (PIN 29) IS GND, MUST BE SOLDERED TO PCB
LT3694-1 PINOUT IS SHOWN IN PARENTHESIS
TOP VIEW
VIN 1
EN/UVLO 2
20 SW
19 DA
SYNC(CLKOUT) 3
18 BST
PGOOD 4
17 BIAS
RT 5
TRK/SS1 6
21
16 VC1
GND
15 FB1
TRK/SS2 7
14 TRK/SS3
FB2 8
13 FB3
DRV2 9
12 DRV3
LIM2 10
11 LIM3
FE PACKAGE
20-LEAD PLASTIC TSSOP
θJA = 38°C/W
EXPOSED PAD (PIN 21) IS GND, MUST BE SOLDERED TO PCB
LT3694-1 PINOUT IS SHOWN IN PARENTHESIS
ORDER INFORMATION
LEAD FREE FINISH
TAPE AND REEL
PART MARKING*
PACKAGE DESCRIPTION
TEMPERATURE RANGE
LT3694EUFD#PBF
LT3694EUFD#TRPBF
3694
28-Lead (4mm × 5mm) Plastic QFN
–40°C to 125°C
LT3694IUFD#PBF
LT3694IUFD#TRPBF
3694
28-Lead (4mm × 5mm) Plastic QFN
–40°C to 125°C
LT3694EFE#PBF
LT3694EFE#TRPBF
LT3694FE
20-Lead Plastic TSSOP
–40°C to 125°C
LT3694IFE#PBF
LT3694IFE#TRPBF
LT3694FE
20-Lead Plastic TSSOP
–40°C to 125°C
LT3694-1EUFD#PBF
LT3694-1EUFD#TRPBF 36941
28-Lead (4mm × 5mm) Plastic QFN
–40°C to 125°C
LT3694-1IUFD#PBF
LT3694-1IUFD#TRPBF 36941
28-Lead (4mm × 5mm) Plastic QFN
–40°C to 125°C
LT3694-1EFE#PBF
LT3694-1EFE#TRPBF LT3694FE-1
20-Lead Plastic TSSOP
–40°C to 125°C
LT3694-1IFE#PBF
LT3694-1IFE#TRPBF
LT3694FE-1
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/
36941fa
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