Datasheet

2
LT1803/LT1804/LT1805
180345f
Total Supply Voltage (V
+
to V
–
) ........................... 12.6V
Input Current (Note 2) ....................................... ±10mA
Output Short-Circuit Duration (Note 3)........... Indefinite
Operating Temperature Range (Note 4) .. –40°C to 85°C
Specified Temperature Range (Note 5)... – 40°C to 85°C
Maximum Junction Temperature ......................... 150°C
ABSOLUTE MAXIMUM RATINGS
W
WW
U
PACKAGE/ORDER INFORMATION
W
UU
Maximum Junction Temperature (DD Package) .. 125°C
Storage Temperature Range ................. –65°C to 150°C
Storage Temperature Range
(DD Package) ....................................... –65°C to 125°C
Lead Temperature (Soldering, 10 sec).................. 300°C
TOP VIEW
S PACKAGE
14-LEAD PLASTIC SO
1
2
3
4
5
6
7
14
13
12
11
10
9
8
OUT A
–IN A
+IN A
V
+
+IN B
–IN B
OUT B
OUT D
–IN D
+IN D
V
–
+IN C
–IN C
OUT C
A
B
D
C
–
+
–
+
–
+
–
+
T
JMAX
= 150°C, θ
JA
= 160°C/W
ORDER PART
NUMBER
ORDER PART
NUMBER
ORDER PART
NUMBER
LT1804CS8
LT1804IS8
S8 PART
MARKING
1804
1804I
LT1804CDD
LT1804IDD
DD PART
MARKING*
LADJ
Consult LTC Marketing for parts specified with wider operating temperature ranges.
*The temperature grades are identified by a label on the shipping container.
LT1805CS
LT1805IS
T
JMAX
= 125°C, θ
JA
= 160°C/W
UNDERSIDE METAL INTERNALLY CONNECTED TO V
–
(PCB CONNECTION OPTIONAL)
T
JMAX
= 150°C, θ
JA
= 190°C/W
1
2
3
4
8
7
6
5
TOP VIEW
V
+
OUT B
–IN B
+IN B
OUT A
–IN A
+IN A
V
–
S8 PACKAGE
8-LEAD PLASTIC SO
–
+
–
+
A
B
TOP VIEW
DD PACKAGE
8-LEAD (3mm × 3mm) PLASTIC DFN
5
6
7
8
4
3
2
1OUT A
–IN A
+IN A
V
–
V
+
OUT B
–IN B
+IN B
–
+
–
+
B
A
(Note 1)
ORDER PART
NUMBER
LT1803CS5
LT1803IS5
S5 PART
MARKING*
LTAFN
ORDER PART
NUMBER
LT1803CS8
LT1803IS8
S8 PART
MARKING
1803
1803I
5 V
+
4 –IN
V
OUT
1
TOP VIEW
S5 PACKAGE
5-LEAD PLASTIC TSOT-23
V
–
2
+IN 3
–
+
TOP VIEW
NC
V
+
V
OUT
NC
NC
–IN
+IN
V
–
S8 PACKAGE
8-LEAD PLASTIC SO
1
2
3
4
8
7
6
5
–
+
T
JMAX
= 150°C, θ
JA
= 190°C/W
T
JMAX
= 150°C, θ
JA
= 250°C/W