LT1963 Series
ABSOLUTE
AXI U
RATI GS
(Note 1)
SHDN Pin Voltage .................................................
±20V
Output Short-Circuit Duration ......................... Indefinite
Operating Junction Temperature Range – 45°C to 125°C
Storage Temperature Range ................. – 65°C to 150°C
Lead Temperature (Soldering, 10 sec).................. 300°C
IN Pin Voltage ........................................................
±20V
OUT Pin Voltage ....................................................
±20V
Input to Output Differential Voltage (Note 2) .........
±20V
SENSE Pin Voltage ...............................................
±20V
ADJ Pin Voltage ......................................................
±7V
PACKAGE/ORDER I FOR ATIO
FRONT VIEW
5
4
TAB IS
GND
3
2
1
Q PACKAGE
5-LEAD PLASTIC DD
SENSE/ADJ*
OUT
GND
IN
SHDN
ORDER PART
NUMBER
LT1963EQ
LT1963EQ-1.5
LT1963EQ-1.8
LT1963EQ-2.5
LT1963EQ-3.3
ORDER PART
NUMBER
*PIN 5 = SENSE FOR LT1963-1.8/LT1963-2.5/LT1963-3.3
= ADJ FOR LT1963
T
JMAX
= 150°C,
θ
JA
= 30°C/ W
FRONT VIEW
3
TAB IS
GND
2
1
OUT
GND
IN
LT1963EST-1.5
LT1963EST-1.8
LT1963EST-2.5
LT1963EST-3.3
ST PART
MARKING
196315
196318
196325
196333
ST PACKAGE
3-LEAD PLASTIC SOT-223
T
JMAX
= 150°C,
θ
JA
= 50°C/ W
Consult LTC Marketing for parts specified with wider operating temperature ranges.
ELECTRICAL CHARACTERISTICS
The
q
denotes specifications which apply over the full operating temperature range, otherwise specifications are T
A
= 25°C. (Note 3)
PARAMETER
CONDITIONS
q
Minimum Input Voltage (Notes 4,12) I
LOAD
= 0.5A
I
LOAD
= 1.5A
Regulated Output Voltage (Note 5)
LT1963-1.5
LT1963-1.8
V
IN
= 2.21V, I
LOAD
= 1mA
2.5V < V
IN
< 20V, 1mA < I
LOAD
< 1.5A
V
IN
= 2.3V, I
LOAD
= 1mA
2.8V < V
IN
< 20V, 1mA < I
LOAD
< 1.5A
2
U
U
W
W W
U
W
FRONT VIEW
5
4
3
2
1
TAB IS
GND
T PACKAGE
5-LEAD PLASTIC TO-220
SENSE/ADJ*
OUT
GND
IN
SHDN
ORDER PART
NUMBER
LT1963ET
LT1963ET-1.5
LT1963ET-1.8
LT1963ET-2.5
LT1963ET-3.3
ORDER PART
NUMBER
*PIN 5 = SENSE FOR LT1963-1.8/LT1963-2.5/LT1963-3.3
= ADJ FOR LT1963
T
JMAX
= 150°C,
θ
JA
= 50°C/ W
TOP VIEW
OUT 1
SENSE/ADJ* 2
GND 3
NC 4
8
7
6
5
IN
GND
GND
SHDN
LT1963ES8
LT1963ES8-1.5
LT1963ES8-1.8
LT1963ES8-2.5
LT1963ES8-3.3
S8 PART
MARKING
1963
196315
196318
196325
196333
S8 PACKAGE
8-LEAD PLASTIC SO
*PIN 2 = SENSE FOR LT1963-1.8/LT1963-2.5/LT1963-3.3
= ADJ FOR LT1963
T
JMAX
= 150°C,
θ
JA
= 70°C/ W
MIN
TYP
1.9
2.1
MAX
2.5
1.523
1.545
1.827
1.854
UNITS
V
V
V
V
V
V
1963fa
q
q
1.477
1.447
1.773
1.737
1.500
1.500
1.800
1.800
LINEAR [ LINEAR INTEGRATED SYSTEMS ]
