LTC1735 Linear Technology, LTC1735 Datasheet - Page 28

• Manufacturer Part Number: LTC1735
• Description: High Efficiency Synchronous Step-Down Switching Regulator
• Manufacturer: Linear Technology

LTC1735
TYPICAL APPLICATIO S
28
2200pF R
150pF
C
C
OSC
C
3.3k
C
47pF
3300pF
0.1 F
100pF
47pF
C
C
0.1 F
SS
47pF
C2
C
C
SS
C2
V
OUT
100
33k
R
C
1000pF
1
2
3
4
5
6
7
8
CMDSH-3
330pF
C
C
RUN/SS
I
FCB
SGND
V
SENSE
SENSE
Selectable Output Voltage Converter with Burst Mode Operation Disabled for CPU Power
1M
TH
C
OSC
OSENSE
C
43pF
10
10
OSC
LTC1735
–
+
1
2
3
4
5
6
7
8
FMMT625
EXTV
BOOST
INTV
C
RUN/SS
I
FCB
SGND
V
SENSE
SENSE
PGND
TH
OSC
OSENSE
SW
V
BG
TG
CC
CC
IN
LTC1735
–
+
16
15
14
13
12
11
10
9
U
10k
EXTV
INTV
BOOST
6.2V
PGND
SW
V
TG
BG
CC
CC
IN
0.1 F
+
4V to 40V Input to 12V Flyback Converter
16
15
14
13
12
11
10
9
4.7 F
OPTIONAL:
CONNECT TO 5V
1 F
CER
C
22 F
50V
4.7
IN
2
+
0.1 F
4.7 F
D
CMDSH-3
0.22 F
B
C
B
4.5V TO 24V
4V TO 40V
10
3
V
V
IN
IN
T1
M1
IR2910
R
0.004
M1
FDS6680A
M2
FDS6680A
SENSE
2
MBRS340T3
6
7
1.2 H
L1
+
22
1nF
100V
C
22 F
CER
R
0.004
IN
2
SENSE
1735 TA05
C
C
L1: PANASONIC ETQP6F1R2HFA
R
C
C
T1: COILTRONICS VP5-0155
R
IN
OUT
SENSE
M2
Si4450DY
IN
OUT
SENSE
: MARCON THCR70EIH226ZT
R3
33.2k
1%
: MARCON THCR70EIH226ZT
: KEMET T510X447M006AS
: AVX TPSV227M016R0150
: IRC LRF2512-01-R004F
VN2222
: IRC LRF2512-01-R004F
10k
47pF
47pF
MBRS1100
R2
10k
1%
R1
14.3k
1%
SGND
+
47
1nF
100V
C
470 F
6.3V
KEMET
ON: V
OFF: V
OUT
3
OUT
OUT
1735 TA07
1.35V/1.60V
12A
V
OUT
= 1.60V
= 1.35V
R2
113k
1%
R1
8.06k
1%
+
C
470 F
16V
OUT
4
V
12V
3A
OUT