Datasheet
2
LTC1159
LTC1159-3.3/LTC1159-5
A
U
G
W
A
W
U
W
ARB
S
O
LU
T
EXI T
I
S
Input Supply Voltage (Pin 2) ..................... –15V to 60V
V
CC
Output Current (Pin 3) .................................. 50mA
Continuous Pin Currents (Any Pin)...................... 50mA
Sense Voltages ......................................... –0.3V to 13V
Shutdown Voltages................................................... 7V
EXTV
CC
Input Voltage ............................................. 15V
Junction Temperature (Note 2)............................ 125°C
Operating Temperature Range
LTC1159C .............................................. 0°C to 70°C
LTC1159I........................................... –40°C to 85°C
Extended Commercial
Temperature Range ............................... –40°C to 85°C
Storage Temperature Range ................ – 65°C to 150°C
Lead Temperature (Soldering, 10 sec)................. 300°C
WU
U
PACKAGE
/
O
RDER I FOR ATIO
LTC1159CG
LTC1159CG-3.3
LTC1159CG-5
ORDER PART
NUMBER
T
JMAX
= 125°C,
θ
JA
= 135°C/W
LTC1159CN
LTC1159CN-3.3
LTC1159CN-5
LTC1159CS
LTC1159CS-3.3
LTC1159CS-5
LTC1159IS
LTC1159IS-3.3
LTC1159IS-5
ORDER PART
NUMBER
1
2
3
4
5
6
7
8
9
10
TOP VIEW
G PACKAGE
20-LEAD PLASTIC SSOP
20
19
18
17
16
15
14
13
12
11
P-GATE
V
IN
V
CC
P-DRIVE
P-DRIVE
V
CC
V
CC
C
T
I
TH
SENSE
–
CAP
SHDN2
EXTV
CC
PGND
N-GATE
PGND
SGND
SHDN1
V
FB
SENSE
+
1
2
3
4
5
6
7
8
TOP VIEW
S PACKAGE
16-LEAD PLASTIC SO
N PACKAGE
16-LEAD PDIP
16
15
14
13
12
11
10
9
P-GATE
V
IN
V
CC
P-DRIVE
V
CC
C
T
I
TH
SENSE
–
CAP
SHDN2
EXTV
CC
N-GATE
PGND
SGND
SENSE
+
*FIXED OUTPUT VERSIONS
V
FB
(SHDN1)*
T
JMAX
= 125°C,
θ
JA
= 80°C/W (N)
T
JMAX
= 125°C,
θ
JA
= 110°C/ W (S)
(Note 1)
Consult LTC Marketing for parts specified with wider operating temperature ranges.
SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS
V
FB
Feedback Voltage (LTC1159 Only) ● 1.21 1.25 1.29 V
I
FB
Feedback Current (LTC1159 Only) ● 0.2 µA
V
OUT
Regulated Output Voltage V
IN
= 9V
LTC1159-3.3 I
LOAD
= 700mA ● 3.23 3.33 3.43 V
LTC1159-5 I
LOAD
= 700mA ● 4.90 5.05 5.20 V
∆V
OUT
Output Voltage Line Regulation V
IN
= 9V to 40V –40 0 40 mV
Output Voltage Load Regulation
LTC1159-3.3 5mA < I
LOAD
< 2A ● 40 65 mV
LTC1159-5 5mA < I
LOAD
< 2A ● 60 100 mV
Burst Mode Output Ripple I
LOAD
= 0A 50 mV
P-P
I
IN
V
IN
Pin Current (Note 4)
Normal Mode V
IN
= 12V, EXTV
CC
= 5V 200 µA
V
IN
= 40V, EXTV
CC
= 5V 300 µA
Shutdown V
IN
= 12V, V
SHDN2
= 2V 15 µA
V
IN
= 40V, V
SHDN2
= 2V 25 µA
I
EXTVCC
EXTV
CC
Pin Current (Note 4) EXTV
CC
= 5V, Sleep Mode 250 µA
E
LECTR
IC
AL C CHARA TERIST
ICS
The ● denotes specifications which apply over the full operating
temperature range, otherwise specifications are at T
A
= 25°C. V
IN
= 12V, V
SHDN1
= 0V (Note 3), unless otherwise noted.