22
LTC1624
TYPICAL APPLICATIO
N
S
U
+
+
SENSE
–
I
TH
/RUN
V
FB
GND
V
IN
BOOST
TG
SW
LTC1624
1000pF
100pF
C
C
330pF
R
C
3.3k
D1
MBRS130LT3
C
B
0.1
µ
F
8
7
6
5
1
2
3
4
R2
35.7k
1%
R1
3.92k
1%
C
OUT
100
µ
F
16V
×
2
M1
Si4412DY
L1*
22
µ
H
R
SENSE
0.04
Ω
C
IN
22
µ
F
35V
×
2
V
OUT
12V
0.75A
V
IN
5.2V TO 11V
1624 F13
*SUMIDA CDRH125-220
0.1
µ
F
Figure 11. Wide Input Range 1.8V/1.5A Converter
+
+
SENSE
–
I
TH
/RUN
V
FB
GND
V
IN
BOOST
TG
SW
LTC1624
1000pF
100pF
C
C
470pF
R
C
6.8k
D1
MBRS140T3
C
B
0.1
µ
F
8
7
6
5
1
2
3
4
R2
35.7k
1%
R1
3.92k
1%
C
OUT
100
µ
F
16V
×
2
M1
Si4412DY
L1*
47
µ
H
R
SENSE
0.068
Ω
C
IN
22
µ
F
35V
×
2
V
OUT
12V
1A
V
IN
12.3V TO 28V
1624 F12
*SUMIDA CDRH125-470
0.1
µ
F
Figure 12. 12V/1A Low Dropout Converter
Figure 13. 12V/0.75A Boost Converter
+
+
SENSE
–
I
TH
/RUN
V
FB
GND
V
IN
BOOST
TG
SW
LTC1624
1000pF
100pF
C
C
470pF
R
C
6.8k
D1
MBRS340T3
C
B
0.1
µ
F
8
7
6
5
1
2
3
4
R2
35.7k
1%
R1
69.8k
1%
C
OUT
100
µ
F
10V
×
2
M1
Si6436DY
L1*
10
µ
H
R
SENSE
0.068
Ω
C
IN
22
µ
F
35V
×
2
V
OUT
1.8V
1.5A
V
IN
4.8V TO 22V
1624 F11
*SUMIDA CDR105B-100
0.1
µ
F
