Datasheet

22
LTC1625
TYPICAL APPLICATIONS
U
–5V/4.5A Positive to Negative Converter
C
IN
: SANYO 16SV220M
C
OUT
: SANYO 6SV470M
L1: MAGNETICS Kool-Mµ 77120-A7, 9 TURNS, 17 GAUGE
C
SS
0.1µF
R
C
10k
C
C1
2.2nF
V
IN

5V TO 10V
V
OUT

–5V 
4.5A
1625TA08
D
B
CMDSH-3
M2
FDS6670A
L1
6µH
C
VCC

4.7µF
C
IN

220µF
16V
+
+
C
OUT

470µF
6.3V
+
D
1
MBR140T3
V
IN
TK
EXTV
CC
LTC1625
SYNC
V
PROG
SW
TG
BOOST
INTV
CC
BG
RUN/SS
FCB
I
TH
SGND
V
OSENSE
PGND
1
2
3
4
5
6
7
8
16
15
14
13
12
11
10
9
C
C2
220pF
C
F
0.1µF
M1
FDS6670A
C
B
0.22µF
R
F
4.7Ω
C
IN
: SANYO 20S68M
C
OUT
: SANYO 16SA100M
L1: 7A, 18µH Kool-Mµ 77120-A7, 15 TURNS, 17 GAUGE
C
SS

0.1µF
R
C

10k
C
C1
2.2nF
V
IN

6V TO 18V
V
OUT

12V
1625TA09
D
B

CMDSH-3
D4
BAT85
L1
18µH
C
VCC

4.7µF
C
IN

68µF
20V
x2
+
+
C
OUT

100µF
16V
30mΩ
x2
+
D2
MBRS340T3
D5
BAT85
D1
MBRS
340T3
Z1
MMBZ
5240
10V
V
IN
TK
EXTV
CC
LTC1625
SYNC
V
PROG
SW
TG
BOOST
INTV
CC
BG
RUN/SS
FCB
I
TH
SGND
V
OSENSE
PGND
1
2
3
4
5
6
7
8
16
15
14
13
12
11
10
9
C
C2

220pF
C
F

0.1µF
M1
Si4420DY
M2
Si4420DY
M3
Si4420DY
M4
Si4425DY
C
B

0.33µF
R
F

4.7Ω
R1
3.92k
R2
35.7k
R1
100k
4
6
5
3
8
2
17
C1
470pF
C2
0.1µF
D3
BAT85
1/2
LTC1693-2
1/2
LTC1693-2
V
IN

18
12
6
I
OUT

4.0
3.3
2.0
Single Inductor, Positive Output Buck Boost