LTC3727EG View Datasheet(PDF) - Linear Technology
Part Name
Description
MFG CO.
'LTC3727EG' PDF : 32 Pages View PDF
TYPICAL APPLICATIO S
LTC3727/LTC3727-1
0.1µF
27pF
20k
1%
105k
1%
1000pF
0.01µF
10k
1000pF
33pF
fSYNC
15k 220pF
33pF
3.3V
15k 220pF
20k
1%
280k
27pF
1%
1000pF
1
RUN/SS1
28
PGOOD
2 SENSE1+
27
TG1
3 SENSE1–
26
SW1
4
VOSENSE1
5
PLLFLTR
6
PLLIN
25
BOOST1
24
VIN
23
BG1
7
FCB
8
ITH1
22
EXTVCC
LTC3727
21
INTVCC
9
SGND
20
PGND
10
3.3VOUT
11
ITH2
12
VOSENSE2
13 SENSE2–
19
BG2
18
BOOST2
17
SW2
16
TG2
14 SENSE2+
15
RUN/SS2
VPULL-UP
(<7V)
PGOOD
L1
8µH
0.015Ω
0.1µF
M1A
CMDSH-3TR
10Ω
0.1µF
1µF
10V
4.7µF
CMDSH-3TR
0.1µF
M2A
M1B
22µF
50V
D1
MBRM
140T3
COUT1
47µF
6.3V
COUT2 100µF 16V
D2
MBRM
M2B
140T3
L2
15µH
0.015Ω
VOUT1
5V
5A; 6A PEAK
GND
VIN
15V TO
28V
VOUT2
12V
4A; 5A PEAK
0.1µF
COUT1: PANASONIC SP SERIES
COUT2: SANYO OS-CON 16SV100M
VIN: 15V TO 28V
VOUT: 5V, 5A/12V, 4A
SWITCHING FREQUENCY = 250kHz
MI, M2: FDS6680A
3727 F13
L1: 8µH SUMIDA CDEP134-8R0
L2: 15µH COILTRONICS UP4B150
Figure 12. LTC3727 12V/4A, 5V/5A Regulator with External Frequency Synchronization
3727f
29
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