LT3517
ABSOLUTE MAXIMUM RATINGS
V
IN
,
SHDN,
PWM, TGEN (Note 3)..............................40V
SW, ISP ISN, TG ........................................................45V
,
TG Pin Below ISP Pin ................................................10V
FB, SYNC, SS, CTRL ...................................................6V
V
C
, R
T
, V
REF
.................................................................3V
Operating Junction Temperature Range (Notes 2,4)
LT3517E ..............................................–40ºC to 125ºC
LT3517I ...............................................–40ºC to 125ºC
LT3517H .............................................–40ºC to 150ºC
(Note 1)
Storage Temperature Range
QFN.....................................................–65ºC to 125ºC
TSSOP ................................................–65ºC to 150ºC
Lead Temperature (Soldering, 10 sec)
TSSOP ..............................................................300ºC
PIN CONFIGURATION
TOP VIEW
V
IN
SHDN
V
REF
R
T
SYNC
SS
PWM
CTRL
1
2
3
4
5
6
7
8
17
GND
16 SW
15 SW
14 TG
13 ISP
12 ISN
11 TGEN
10 FB
9
V
C
SW 1
SW 2
V
IN
3
SHDN
4
5
V
REF
6
R
T
7
SYNC
8
SS
17
TOP VIEW
TGEN
12 FB
11 V
C
10 CTRL
9
PWM
ISN
ISP
TG
16 15 14 13
FE PACKAGE
16-LEAD PLASTIC TSSOP
T
JMAX
= 150°C,
JA
= 40°C/W,
JC(PAD)
= 10°C/W
UF PACKAGE
16-LEAD (4mm × 4mm) PLASTIC QFN
T
JMAX
= 125°C,
θ
JA
= 36°C/W
EXPOSED PAD (PIN 17) IS GND, MUST BE SOLDERED TO PCB
ORDER INFORMATION
LEAD FREE FINISH
LT3517EUF#PBF
LT3517IUF#PBF
LT3517EFE#PBF
LT3517IFE#PBF
LT3517HFE#PBF
TAPE AND REEL
LT3517EUF#TRPBF
LT3517IUF#TRPBF
LT3517EFE#TRPBF
LT3517IFE#TRPBF
LT3517HFE#TRPBF
PART MARKING*
3517
3517
3517FE
3517FE
3517HFE
PACKAGE DESCRIPTION
16-Lead (4mm × 4mm) Plastic QFN
16-Lead (4mm × 4mm) Plastic QFN
16-Lead Plastic TSSOP
16-Lead Plastic TSSOP
16-Lead Plastic TSSOP
TEMPERATURE RANGE
–40°C to 125°C
–40°C to 125°C
–40°C to 125°C
–40°C to 125°C
–40°C to 150°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/
3517fa
2
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