LTC1159 Linear Technology, LTC1159 Datasheet - Page 2

• Manufacturer Part Number: LTC1159
• Description: High Efficiency Synchronous Step-Down Switching Regulators
• Manufacturer: Linear Technology

A
LTC1159/LTC1159-3.3/LTC1159-5
Input Supply Voltage (Pin 2)...................... – 15V to 60V
V
Continuous Pin Currents (Any Pin) ...................... 50mA
Sense Voltages ......................................... – 0.3V to 13V
Shutdown Voltages ................................................... 7V
EXTV
PACKAGE/ORDER I FOR ATIO
Consult factory for Industrial and Military grade parts.
ELECTRICAL C
SYMBOL
V
I
V
I
I
V
2
FB
IN
EXTVCC
V
FB
OUT
CC
V
CC
IN
BSOLUTE
OUT
– V
Output Current (Pin 3) .................................. 50mA
P-DRIVE
P-DRIVE
CC
SENSE
P-GATE
CC
V
V
V
Input Voltage ............................................. 15V
V
I
C
CC
CC
CC
TH
IN
T
–
T
JMAX
20-LEAD PLASTIC SSOP
10
1
2
3
4
5
6
7
8
9
PARAMETER
Feedback Voltage (LTC1159 Only)
Feedback Current (LTC1159 Only)
Regulated Output Voltage
Output Voltage Line Regulation
Output Voltage Load Regulation
Burst Mode Output Ripple
V
EXTV
Internal Regulator Voltage
V
IN
CC
= 125 C,
LTC1159-3.3
LTC1159-5
LTC1159-3.3
LTC1159-5
Normal Mode
Shutdown
Pin Current (Note 3)
Dropout Voltage
G PACKAGE
TOP VIEW
CC
W
Pin Current (Note 3)
JA
A
= 135 C/ W
HARA TERISTICS
XI
20
19
18
17
16
15
14
13
12
11
W
CAP
SHDN2
EXTV
P-GND
N-GATE
P-GND
S-GND
SHDN1
V
SENSE
FB
U
CC
C
U
+
W
R
A
LTC1159CG
LTC1159CG-3.3
LTC1159CG-5
W
ORDER PART
TI
CONDITIONS
V
I
I
V
5mA < I
5mA < I
I
V
V
V
V
EXTV
V
V
LOAD
LOAD
LOAD
NUMBER
IN
IN
IN
IN
IN
IN
IN
IN
U
= 9V
= 9V to 40V
= 12V, EXTV
= 40V, EXTV
= 12V, V
= 40V, V
= 12V to 40V, EXTV
= 4V, EXTV
CC
G
= 700mA
= 700mA
= 0A
LOAD
LOAD
= 5V, Sleep Mode
S
T
A
SHDN2
SHDN2
U
< 2A
< 2A
= 25 C, V
CC
CC
CC
= Open, I
= 2V
= 2V
= 5V
= 5V
Operating Temperature Range .................... 0 C to 70 C
Extended Commercial
Temperature Range ............................... – 40 C to 85 C
Junction Temperature (Note 1) ............................ 125 C
Storage Temperature Range ................ – 65 C to 150 C
Lead Temperature (Soldering, 10 sec)................. 300 C
CC
IN
P-DRIVE
= 0V, I
SENSE
CC
P-GATE
= 12V, V
16-LEAD PDIP
= 10mA
N PACKAGE
V
V
V
I
C
CC
CC
TH
IN
T
T
T
–
CC
JMAX
JMAX
*FIXED OUTPUT VERSIONS
= 10mA
1
2
3
4
5
6
7
8
= 125 C,
= 125 C,
SHDN1
TOP VIEW
= 0V (Note 2), unless otherwise noted.
JA
JA
16-LEAD PLASTIC SO
= 80 C/ W (N)
= 110 C/ W (S)
S PACKAGE
16
15
14
13
12
11
10
9
CAP
SHDN2
EXTV
N-GATE
P-GND
S-GND
V
SENSE
FB
1.21
3.23
4.90
4.25
(SHDN1)*
MIN
– 40
CC
+
1.25
3.33
5.05
TYP
200
300
250
300
0.2
4.5
40
60
50
15
25
0
LTC1159CN
LTC1159CN-3.3
LTC1159CN-5
LTC1159CS
LTC1159CS-3.3
LTC1159CS-5
ORDER PART
NUMBER
MAX
1.29
3.43
5.20
4.75
100
400
40
65
UNITS
mV
mV
mV
mV
mV
P-P
V
A
V
V
A
A
A
A
A
V