LTC3851 LINER [Linear Technology], LTC3851 Datasheet - Page 26

• Manufacturer Part Number: LTC3851
• Description: Synchronous Step-Down Switching Regulator Controller
• Manufacturer: LINER [Linear Technology]

LTC3851
TYPICAL APPLICATIONS
26
47pF
R
1k
C
10nF
R
0.1μF
C
80k
FREQ
C
0.22μF
C5
V
0.1μF
OUT
C
100pF
C
0.01μF
C2
47pF
7.5k
SS
C2
R
C
1000pF
1000pF
1
2
3
4
5
6
7
8
CMDSH-3
C1
C
MODE/PLLIN
FREQ/PLLFLTR
RUN
TK/SS
I
V
SENSE
SENSE
C
TH
10k
FB
R5
1000pF
LTC3851
–
+
350kHz
PLLIN
FMMT625
C
100pF
0.1μF
INTV
C
C2
BOOST
SS
GND
I
SW
V
LIM
BG
TG
CC
IN
16
15
14
13
12
11
10
9
MODE/PLLIN
FREQ/PLLFLTR
RUN
TK/SS
I
V
SENSE
SENSE
TH
FB
10k
6.2V
LTC3851
–
+
4V to 40V Input to 12V Flyback Converter
+
BOOST
INTV
GND
I
2.5V/15A Synchronized at 350kHz
V
SW
LIM
TG
BG
4.7μF
CC
IN
C
22μF
50V
IN
2
0.1μF
R22 100Ω
R20 100Ω
+
4.7μF
D
CMDSH-3
4V TO 40V
B
0.1μF
10
C
3
V
B
IN
T1
M1
IRL2910S
6V TO 14V
R
0.004Ω
SENSE
V
6
7
IN
M1
RJK0305DPB
M2
RJK0301DPB
0.68μH
B34OLA
22Ω
L1
1nF
100V
D2
C
C
R
T1: COILTRONICS VP5-0155
C
180μF
0.002Ω
R
IN
OUT
SENSE
IN
SENSE
: MARCON THCR70EIH226ZT
: AVX TPSV227M016R0150
M2
Si4850EY
: IRC LRF2512-01-R004F
3851 TA04
C
L1: SUMIDA CEP125-OR6MC
C10
33pF
OUT
: SANYO 2R5TPE330M9
MBRS1100
R2
43.2k
1%
R1
20k
1%
+
47Ω
1nF
100V
C
330μF
OUT
2
V
2.5V
15A
OUT
3851 TA05
R2
113k
1%
R1
8.06k
1%
+
3851f
C
220μF
16V
V
12V
3A
OUT
4
OUT