LT1160/LT1162
TYPICAL APPLICATIONS
U
0.1µF
1µF
+
4.7k
C1
0.1µF
12V
1
2
3
4
5
6
7
8
9
18
17
16
15
14
13
12
11
10
4.7k
360Ω
60V MAX
10µF
+
+
1N4148
2200µF EA
LOW ESR
LT1160
0.33µF
1N4148
2k
1
2
3
4
5
6
7
14
13
12
11
10
9
+
SV
IN TOP
IN BOTTOM T GATE FB
BOOST
IRFZ44
T GATE DR
0.022µF
0.1µF
1µF
1k
LT3526
330k
L*
70µH
R **
S
0.007Ω
1N4148
0.1µF
510Ω
5V
5k
2N2222
UV OUT
SGND
PGND
NC
T SOURCE
+
+
5400µF
LOW ESR
1k
PV
IRFZ44 IRFZ44
MBR360
SHUTDOWN
B GATE DR
B GATE FB
8
27k
2.2nF
f = 25kHz
* MAGNETICS CORE #55585-A2
30 TURNS 14GA MAGNET WIRE
** DALE TYPE LVR-3
ULTRONIX RCS01
1160/62 F04
Figure 4. 90% Efficiency, 40V to 5V 10A Low Dropout Voltage Mode Switching Regulator
12V
2200µF EA
1N4148
LOW ESR
60V
MAX
+
+
1
2
3
4
5
6
7
8
16
15
14
13
12
11
10
9
10µF
LT1160
10k
2k
1
2
3
4
5
6
7
14
13
12
11
10
9
2.2µF
1µF
+
SV
IN TOP
IN BOTTOM T GATE FB
BOOST
1N4148
IRFZ44
T GATE DR
0.1µF
1k
330k
L*
47µH
R **
S
LT1846
18k
0.1µF
0.007Ω
UV OUT
SGND
PGND
NC
T SOURCE
5V
+
5400µF
LOW ESR
+
PV
6800pF
500k
IRFZ44 IRFZ44
25k
1N4148
10k
5k
B GATE DR
B GATE FB
MBR360
100pF
8
1k
2N2222
4700pF
18k
f = 40kHz
* HURRICANE LAB
HL-KM147U
** DALE TYPE LVR-3
ULTRONIX RCS01
1160/62 F05
Figure 5. 90% Efficiency, 40V to 5V 10A Low Dropout Current Mode Switching Regulator
11602fb
12
Linear Systems [ Linear Systems ]
