Datasheet

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