Datasheet

LT8609/LT8609A/LT8609B
2
Rev. H
For more information www.analog.com
PIN CONFIGURATION
ABSOLUTE MAXIMUM RATINGS
V
IN
, EN/UV, PG ..........................................................42V
FB, TR/SS . .................................................................4V
SYNC Voltage . ............................................................6V
(Note 1)
1
2
3
4
5
BST
SW
INTV
CC
RT
SYNC
10
9
8
7
6
EN/UV
V
IN
PG
TR/SS
FB
11
GND
MSE PACKAGE
10-LEAD PLASTIC MSOP

JA
= 40°C/W
EXPOSED PAD (PIN 11) IS GND,
MUST BE SOLDERED TO PCB
LT8609/LT8609A
TOP VIEW
1
2
3
4
5
BST
SW
INTV
CC
RT
NC
10
9
8
7
6
EN/UV
V
IN
PG
TR/SS
FB
LT8609B
TOP VIEW
11
GND
MSE PACKAGE
10-LEAD PLASTIC MSOP

JA
= 40°C/W
EXPOSED PAD (PIN 11) IS GND,
MUST BE SOLDERED TO PCB
1
2
3
4
5
6
7
8
BST
NC
SW
NC
INTV
CC
RT
SYNC
GND
16
15
14
13
12
11
10
9
EN/UV
NC
V
IN
NC
PG
TR/SS
FB
FB
TOP VIEW
17
GND
MS PACKAGE
16-LEAD PLASTIC MSOP

JA
= 40°C/W, 
JC
(PAD) = 10°C/W
EXPOSED PAD (PIN 17) IS GND,
MUST BE SOLDERED TO PCB
ORDER INFORMATION
LEAD FREE FINISH TAPE AND REEL PART MARKING* PACKAGE DESCRIPTION TEMPERATURE RANGE
LT8609EMSE#PBF LT8609EMSE#TRPBF LTGRW 10-Lead Plastic MSOP –40°C to 125°C
LT8609IMSE#PBF LT8609IMSE#TRPBF LTGRW 10-Lead Plastic MSOP –40°C to 125°C
LT8609HMSE#PBF LT8609HMSE#TRPBF LTGRW 10-Lead Plastic MSOP –40°C to 150°C
LT8609AEMSE#PBF LT8609AEMSE#TRPBF LTGVR 10-Lead Plastic MSOP –40°C to 125°C
LT8609AIMSE#PBF LT8609AIMSE#TRPBF LTGVR 10-Lead Plastic MSOP –40°C to 125°C
LT8609BEMSE#PBF LT8609BEMSE#TRPBF LTGZY 10-Lead Plastic MSOP –40°C to 125°C
LT8609BIMSE#PBF LT8609BIMSE#TRPBF LTGZY 10-Lead Plastic MSOP –40°C to 125°C
LT8609AHMSE#PBF LT8609AHMSE#TRPBF LTGVR 10-Lead Plastic MSOP –40°C to 150°C
LT8609AJMSE#PBF LT8609AJMSE#TRPBF LTGVR 10-Lead Plastic MSOP –40°C to 150°C
LT8609AHMSE16#PBF LT8609AHMSE16#TRPBF 8609A 16-Lead Plastic MSOP –40°C to 150°C
LT8609AJMSE16#PBF LT8609AJMSE16#TRPBF 8609A 16-Lead Plastic MSOP –40°C to 150°C
Contact the factory for parts specified with wider operating temperature ranges. *The temperature grade is identified by a label on the shipping container.
Tape and reel specifications. Some packages are available in 500 unit reels through designated sales channels with #TRMPBF suffix.
Operating Junction Temperature Range (Note 2)
LT8609E/LT8609AE/LT8609BE ......... –40°C to 125°C
LT8609I/LT8609AI/LT8609BI ............ –40°C to 125°C
LT8609H/LT8609AH .......................... –40°C to 150°C
LT8609AJ .......................................... –40°C to 150°C
Storage Temperature Range .................. –65°C to 150°C
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