Datasheet

23
LTC1624
TYPICAL APPLICATIONS
U
+
+
+
SENSE
–

I
TH
/RUN
V
FB

GND

V
IN

BOOST
TG
SW
LTC1624
1000pF
100pF
C
C

330pF
R
C

4.7k
D1
MBRS130LT3
C
B

0.1µF
8
7
6
5
1
2
3
4
R2
35.7k
1%
R1
3.92k
1%
C
OUT

100µF
16V
× 2
M1
Si4412DY
L1a*
L1b*
R
SENSE

0.068Ω
C
IN

22µF
35V
22µF
35V
V
OUT

12V
0.5A
V
IN

5V TO 15V
1624 F14
*COILTRONICS CTX20-4
0.1µF
+
+
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

0.1µF
8
7
6
5
1
2
3
4
R2
35.7k
1%
R1
20k
1%
C
OUT

100µF
10V
× 2
M1
Si6426DQ
L1*
20µH
R
SENSE

0.068Ω
C
IN

22µF
35V
× 2
V
OUT

3.3V
1.5A
V
IN

3.5V TO 18V
1624 F16
*COILTRONICS CTX20-4
0.1µF
Figure 16. Low Dropout 3.3V/1.5A Converter
Figure 14. 12V/0.4A SEPIC Converter
Figure 15. Inverting –5V/2A Converter
+
+
SENSE
–

I
TH
/RUN
V
FB

GND

V
IN

BOOST
TG
SW
LTC1624
1000pF
0.1µF
100pF
C
C

1000pF
R
C

3.3k
R3
100k
V
CC
V
CC
SHUTDOWN
D1
MBRS340T3
D2
CMDSH-3
C
B

0.1µF
8
7
6
5
1
2
3
4
R2
78.7k
1%
R1
24.9k
1%
C
OUT

100µF
10V
× 2
M2
VN2222
M3
TP0610L
M1
Si4410DY
L1*
33µH
R
SENSE

0.025Ω
C
IN

22µF
35V
× 2
V
OUT

–5V
2A
V
IN

5V TO 22V
1624 F15
*COILCRAFT DO5022P-333