Datasheet

2
LT1764A Series
1764afb
PARAMETER CONDITIONS MIN TYP MAX UNITS
Minimum Input Voltage I
LOAD
= 0.5A 1.7 V
(Notes 3, 11) I
LOAD
= 1.5A 1.9 V
E Grade: I
LOAD
= 3A ● 2.3 2.7 V
MP Grade: I
LOAD
= 3A ● 2.3 2.8 V
Regulated Output Voltage LT1764A-1.5 V
IN
= 2.21V, I
LOAD
= 1mA 1.477 1.500 1.523 V
(Note 4) 2.7V < V
IN
< 20V, 1mA < I
LOAD
< 3A ● 1.447 1.500 1.545 V
LT1764A-1.8 V
IN
= 2.3V, I
LOAD
= 1mA 1.773 1.800 1.827 V
2.8V < V
IN
< 20V, 1mA < I
LOAD
< 3A ● 1.737 1.800 1.854 V
ABSOLUTE MAXIMUM RATINGS
W
WW
U
PACKAGE/ORDER INFORMATION
W
U
U
(Note 1)
IN Pin Voltage ........................................................ ±20V
OUT Pin Voltage .................................................... ±20V
Input to Output Differential Voltage (Note 12) ....... ±20V
SENSE Pin Voltage ............................................... ±20V
ADJ Pin Voltage ...................................................... ±7V
SHDN Pin Voltage ................................................. ±20V
The ● denotes specifications which apply over the full operating temperature range, otherwise specifications are T
A
= 25°C. (Note 2)
ELECTRICAL CHARACTERISTICS
Output Short-Circuit Duration ......................... Indefinite
Operating Junction Temperature Range
E Grade............................................. –40°C to 125°C
MP Grade ......................................... – 55°C to 125°C
Storage Temperature Range ................. – 65°C to 150°C
Lead Temperature (Soldering, 10 sec).................. 300°C
Consult LTC Marketing for parts specified with wider operating temperature ranges.
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/
LT1764AET
LT1764AET-1.5
LT1764AET-1.8
LT1764AET-2.5
LT1764AET-3.3
ORDER PART NUMBER
LT1764AEQ
LT1764AEQ-1.5
LT1764AEQ-1.8
LT1764AEQ-2.5
LT1764AEQ-3.3
LT1764AMPQ
ORDER PART NUMBER
T
JMAX
= 150°C, θ
JA
= 30°C/ W
*PIN 5 = SENSE FOR LT1764A-1.5/LT1764A-1.8/
LT1764A-2.5/LT1764A-3.3
= ADJ FOR LT1764A
*PIN 5 = SENSE FOR LT1764A-1.5/LT1764A-1.8/
LT1764A-2.5/LT1764A-3.3
= ADJ FOR LT1764A
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
LT1764AEFE
LT1764AEFE-1.5
LT1764AEFE-1.8
LT1764AEFE-2.5
LT1764AEFE-3.3
ORDER PART NUMBER FE PART MARKING
LT1764AEFE
LT1764AEFE-1.5
LT1764AEFE-1.8
LT1764AEFE-2.5
LT1764AEFE-3.3
FE PACKAGE
16-LEAD PLASTIC TSSOP
PIN 17 IS GND
1
2
3
4
5
6
7
8
TOP VIEW
16
15
14
13
12
11
10
9
GND
NC
OUT
OUT
OUT
SENSE/ADJ*
GND
GND
GND
NC
IN
IN
IN
NC
SHDN
GND
17
T
JMAX
= 150°C, θ
JA
= 38°C/ W
*PIN 6 = SENSE FOR LT1764A-1.5/
LT1764A-1.8/LT1764A-2.5/
LT1764A-3.3
= ADJ FOR LT1764A