LT1638C/LT1639C ............................. – 40°C to 85°C
LT1638I/LT1639I ................................ – 40°C to 85°C
LT1638H/LT1639H ........................... – 40°C to 125°C
PACKAGE/ORDER INFORMATION
ORDER
PART NUMBER
TOP VIEW
TOP VIEW
OUT A
–IN A
+IN A
V
–
1
2
3
4
8
7
6
5
V+
OUT B
–IN B
+IN B
LT1638CMS8
LT1638IMS8
MS8 PART
MARKING*
LTCY
A
B
MS8 PACKAGE
8-LEAD PLASTIC MSOP
T
JMAX
= 150°C,
θ
JA
= 300°C/W (MS8)
ORDER
PART NUMBER
TOP VIEW
OUT A
–IN A
+IN A
V
–
1
2
3
4
A
B
8
7
6
5
V
+
OUT B
–IN B
+IN B
LT1638CDD
LT1638IDD
DD PART MARKING*
LAAL
DD PACKAGE
8-LEAD (3mm
×
3mm) PLASTIC DFN
T
JMAX
= 125°C,
θ
JA
= 160°C/W (NOTE 10)
UNDERSIDE METAL INTERNALLY CONNECTED TO V
–
Order Options
Tape and Reel: Add #TR
Lead Free: Add #PBF Lead Free Tape and Reel: Add #TRPBF
Lead Free Part Marking:
http://www.linear.com/leadfree/
*The temperature grades are identified by a label on the shipping container. Consult LTC Marketing for parts specified with wider operating temperature ranges.
2
U
U
W
W W
U
W
(Note 1)
Specified Temperature Range (Note 4)
LT1638C/LT1639C ............................. – 40°C to 85°C
LT1638I/LT1639I ................................ – 40°C to 85°C
LT1638H/LT1639H ........................... – 40°C to 125°C
Junction Temperature ........................................... 150°C
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