LTC3727-1 Linear Technology, LTC3727-1 Datasheet - Page 29

• Manufacturer Part Number: LTC3727-1
• Description: 2-Phase Synchronous Step-Down Switching Regulators
• Manufacturer: Linear Technology

TYPICAL APPLICATIO S
C
C
OUT1
OUT2
0.1 F
27pF
27pF
33pF
33pF
20k
1%
10k
15k
15k
20k
1%
: PANASONIC SP SERIES
: SANYO OS-CON 16SV100M
0.01 F
0.1 F
220pF
220pF
280k
105k
1%
1%
1000pF
1000pF
1000pF
Figure 12. LTC3727 12V/4A, 5V/5A Regulator with External Frequency Synchronization
3.3V
f
SYNC
V
V
10
11
12
13
14
1
2
3
4
5
6
7
8
9
IN
OUT
: 15V TO 28V
RUN/SS1
SENSE1
SENSE1
V
PLLFLTR
PLLIN
FCB
I
SGND
3.3V
I
V
SENSE2
SENSE2
: 5V, 5A/12V, 4A
U
TH1
TH2
OSENSE1
OSENSE2
OUT
LTC3727
+
–
–
+
RUN/SS2
BOOST1
BOOST2
EXTV
PGOOD
INTV
PGND
SW1
SW2
BG1
BG2
TG1
TG2
V
CC
CC
IN
SWITCHING FREQUENCY = 250kHz
MI, M2: FDS6680A
28
27
26
25
24
23
22
21
20
19
18
17
16
15
1 F
10V
CMDSH-3TR
0.1 F
V
(<7V)
PGOOD
CMDSH-3TR
PULL-UP
0.1 F
4.7 F
0.1 F
L1: 8 H SUMIDA CDEP134-8R0
L2: 15 H COILTRONICS UP4B150
10
M1A
M2A
LTC3727/LTC3727-1
M1B
M2B
15 H
8 H
22 F
50V
L1
L2
C
OUT2
0.015
0.015
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C
47 F
6.3V
100 F 16V
OUT1
D1
MBRM
140T3
D2
MBRM
140T3
3727 F13
V
5V
5A; 6A PEAK
GND
V
15V TO
28V
V
12V
4A; 5A PEAK
OUT1
IN
OUT2
29
3727f