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LTC1735CF

P1-P3P4-P6P7-P9P10-P12P13-P15P16-P18P19-P21P22-P24P25-P27P28-P30P31-P32
28
LTC1735
1735fc
TYPICAL APPLICATIO S
U
1.8V/5A Converter from Design Example with Burst Mode Operation Disabled
16
15
14
13
12
11
10
9
1
2
3
4
5
6
7
8
C
OSC
RUN/SS
I
TH
FCB
SGND
V
OSENSE
SENSE
–
SENSE
+
TG
BOOST
SW
V
IN
INTV
CC
BG
PGND
EXTV
CC
LTC1735
C
SS
0.1µF
C
B
0.1µF
C
C2
220pF
47pF
C
C
470pF
R
C
33k
R
SENSE
0.01Ω
V
OUT
1.8V
5A
1000pF
C
OSC
43pF
+
4.7µF
+
C
OUT
150µF
6.3V
×2
PANASONIC SP
C
IN
22µF
50V
CER
M1
Si4412DY
M2
Si4410DY
C
OUT
: PANASONIC EEFUEOG151R
C
IN
: MARCON THCR70LE1H226ZT
L1: PANASONIC ETQP6F3R3HFA
R
SENSE
: IRC LR 2010-01-R010F
1735 TA02
D
B
CMDSH-3
R2
32.4k
1%
R1
25.5k
1%
MBRS140T3
V
IN
4.5V TO 22V
L1
3.3µH
OPTIONAL:
CONNECT TO 5V
SGND
CPU Core Voltage Regulator for 2-Step Applications (V
IN
= 5V)
16
15
14
13
12
11
10
9
1
2
3
4
5
6
7
8
C
OSC
RUN/SS
I
TH
FCB
SGND
V
OSENSE
SENSE
–
SENSE
+
TG
BOOST
SW
V
IN
INTV
CC
BG
PGND
EXTV
CC
LTC1735
C
SS
0.1µF
C
B
0.22µF
C
C2
220pF
47pF
C
C
220pF
R
C
20k
100k*
*OPTIONAL TO DEFEAT OVERCURRENT LATCHOFF
R
SENSE
0.004Ω
V
OUT
1.5V
12A
1000pF
C
OSC
39pF
+
4.7µF
1µF
100pF
+
+
C
OUT
180µF
4V
×3
C
O
47µF
10V
C
IN
150µF
6.3V
×2
M1
FDS6680A
M2, M3
FDS6680A
×2
C
OUT
: PANASONIC EEFUEOG181R
C
IN
: PANASONIC EEFUEOJ151R
C
O
: TAIYO YUDEN LMK550BJ476MM-B
L1: COILCRAFT 1705022P-781HC
R
SENSE
: IRC LRF 2512-01-R004-J
1735 TA03
D
B
MBR0530
R2
22.6k
1%
R1
25.5k
1%
MBRD835L
V
IN
5V
L1
0.78µH
V
IN
SGND
29
LTC1735
1735fc
TYPICAL APPLICATIO S
U
Selectable Output Voltage Converter with Burst Mode Operation Disabled for CPU Power
20
19
18
17
16
15
14
13
12
11
1
2
3
4
5
6
7
8
9
10
NC
C
OSC
RUN/SS
I
TH
FCB
SGND
V
OSENSE
PGOOD
SENSE
–
SENSE
+
NC
TG
BOOST
SW
V
IN
INTV
CC
BG
PGND
EXTV
CC
NC
LTC1735F
C
SS
0.1µF
C
B
0.22µF
0.1µF
4.7Ω
C
C2
47pF
47pF
C
C
330pF
R
C
33k
R
SENSE
0.004Ω
V
OUT
1.35V/1.60V
12A
1000pF
C
OSC
43pF
+
4.7µF
1µF
CER
+
C
OUT
470µF
6.3V
×3
KEMET
ON: V
OUT
= 1.60V
OFF: V
OUT
= 1.35V
C
IN
: MARCON THCR70EIH226ZT
C
OUT
: KEMET T510X447M006AS
L1: PANASONIC ETQP6F1R2HFA
R
SENSE
: IRC LRF2512-01-R004F
M1
FDS6680A
M2
FDS6680A
×2
1735 TA05
C
IN
22µF
×2
CER
D
B
CMDSH-3
R2
10k
1%
R1
14.3k
1%
47pF
47pF
10k
MBRS340T3
V
IN
4.5V TO 24V
L1
1.2µH
OPTIONAL:
CONNECT TO 5V
NC
NCNC
POWER GOOD
R3
33.2k
1%
SGND
VN2222
10Ω
10Ω
16
15
14
13
12
11
10
9
1
2
3
4
5
6
7
8
C
OSC
RUN/SS
I
TH
FCB
SGND
V
OSENSE
SENSE
–
SENSE
+
TG
BOOST
SW
V
IN
INTV
CC
BG
PGND
EXTV
CC
LTC1735
C
SS
0.1µF
C
C2
100pF
C
C
2200pF
R
C
3.3k
1M
V
OUT
10k
6.2V
FMMT625
R
SENSE
0.004Ω
22Ω
T1
V
IN
4V TO 40V
6
7
10
3
47Ω
R2
113k
1%
C
OUT
220µF
16V
×4
V
OUT
12V
3A
R1
8.06k
1%
3300pF
47pF
C
OSC
150pF
+
4.7µF
0.1µF
C
IN
: MARCON THCR70EIH226ZT
C
OUT
: AVX TPSV227M016R0150
T1: COILTRONICS VP5-0155
R
SENSE
: IRC LRF2512-01-R004F
M1
IRL2910S
M2
Si4850EY
MBRS1100
1735 TA07
+
100Ω
1nF
100V
1nF
100V
•
•
C
IN
22µF
50V
×2
CMDSH-3
4V to 40V Input to 12V Flyback Converter
30
LTC1735
1735fc
Dual Output 15W 3.3V/5V Power Supply
TYPICAL APPLICATIO S
U
16
15
14
13
12
11
10
9
1
2
3
4
5
6
7
8
C
OSC
RUN/SS
I
TH
FCB
SGND
V
OSENSE
SENSE
–
SENSE
+
TG
BOOST
SW
V
IN
INTV
CC
BG
PGND
EXTV
CC
LTC1735
C
SS
0.1µF
C
B
0.1µF
C
C2
220pF
100pF
C
C
470pF
R
C
33k
R
SENSE
0.012Ω
V
OUT
5V
3.5A
V
OUT2
12V
120mA
UNREG
1000pF
C
OSC
51pF
+
4.7µF
+
C
OUT
100µF
10V
×3
AVX
+
C
SEC
22µF
35V
AVX
M1
Si4802DY
M2
Si4802DY
1735 TA04
+
C
IN
22µF
30V
OS-CON
D
B
CMDSH-3
R2
105k
1%
C
IN
: SANYO OS-CON 30SC22M
C
OUT
: AVX TPSD107M010R0068
T1: 1:8 DALE LPE6562-A262
R1
20k
1%
MBRS140T3
V
IN
5.5V TO 28V
T1
1:1.8
10µH
SGND
MBRS1100T3
22Ω
1000pF
10k
100Ω
100Ω
140k
5V/3.5A Converter with 12V/200mA Auxiliary Output
16
15
14
13
12
11
10
9
1
2
3
4
5
6
7
8
C
OSC
RUN/SS
I
TH
FCB
SGND
V
OSENSE
SENSE
–
SENSE
+
TG
BOOST
SW
V
IN
INTV
CC
BG
PGND
EXTV
CC
LTC1735
C
SS
0.1µF
C
B
0.1µF
0.01µF
C
C2
100pF
100pF
C
C
470pF
R
C
33k
R
SENSE
0.01Ω
V
OUT1
3.3V
2.5A
1000pF
C
OSC
47pF
+
4.7µF
+
C
OUT1
100µF
10V
×2
C
OUT2
100µF
10V
×2
V
OUT2
5V
1.5A
M1
Si4412DY
M2
Si4412DY
M3
Si4412DY
1735 TA08
C
IN
22µF
50V
D
B
CMDSH-3
R2
62.6k
1%
C
IN
: MARCON THCR70EIH226ZT
C
OUT1, 2
: AVX TPSD107M010R0065
T1: BI TECHNOLOGIES HM00-93839
R
SENSE
: IRC LRF2512-01-R010 F
R1
20k
1%
MBRS140T3
CMDSH-3
MBRS140T3
V
IN
4.5V TO 28V
T1A T1B
T1C
4.7k
18
•
V
OUT2
27
•
36
•
SGND
+
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LTC1735CF

Mfr. #:
Buy LTC1735CF
Manufacturer:
Analog Devices / Linear Technology
Description:
Switching Voltage Regulators LTC1735 - High Efficiency Synchronous Step-Down Switching Regulator
Lifecycle:
New from this manufacturer.
Delivery:
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Payment:
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