LTC3727EG-1#TR Linear Technology, LTC3727EG-1#TR Datasheet - Page 29

• Manufacturer Part Number: LTC3727EG-1#TR
• Description: IC REG SW SYNC 2PH STPDWN 28SSOP
• Manufacturer: Linear Technology
• Series: PolyPhase®r
• Type: Step-Down (Buck)r

Specifications of LTC3727EG-1#TR

• Internal Switch(s): No
• Synchronous Rectifier: Yes
• Number Of Outputs: 2
• Voltage - Output: 0.8 ~ 14 V
• Current - Output: 25A
• Frequency - Switching: 250kHz ~ 550kHz
• Voltage - Input: 4 ~ 36 V
• Operating Temperature: -40°C ~ 85°C
• Mounting Type: Surface Mount
• Package / Case: 28-SSOP
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Power - Output: -

TYPICAL APPLICATIO S
C
C
OUT1
OUT2
0.1μF
27pF
27pF
33pF
33pF
20k
1%
10k
15k
15k
20k
1%
: PANASONIC EEFCDOJ470R
: SANYO OS-CON 16SVP100M
0.01μF
0.1μF
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: FAIRCHILD FDS6680A
28
27
26
25
24
23
22
21
20
19
18
17
16
15
1μF
10V
CMDSH-3
0.1μF
V
(<7V)
PGOOD
CMDSH-3
PULL-UP
0.1μF
4.7μF
0.1μF
L1: 8μH SUMIDA CDEP134-8R0
L2: 15μH COILTRONICS UP4B-150
10Ω
M1A
M2A
LTC3727/LTC3727-1
M1B
M2B
15μH
8μH
22μF
50V
L1
L2
C
OUT2
0.015Ω
0.015Ω
C
47μF
6.3V
100μF 16V
OUT1
D1
MBRM
140T3
D2
MBRM
140T3
3727 F12
V
5V
5A; 6A PEAK
GND
V
15V TO
28V
V
12V
4A; 5A PEAK
OUT1
IN
OUT2
29
3727fc