Datasheet

LTC3860
31
3860fc
TYPICAL APPLICATIONS
Dual Output—3-Channel + Single Channel, Synchronized to External Clock
V
CC
FB1
COMP1
VSNSOUT
VSNSN
VSNSP
COMP2
FB2
RUN1
I
LIM1
ISNS1P
ISNS1N
ISNS2N
ISNS2P
I
LIM2
RUN2
V
DIFF
V
OSN
V
OSP
V
CC
V
CC
RUN1
TRACK/SS1
PWM2
TRACK/SS1
VINSNS
SGND SGND
I
AVG
PGOOD1
PWMEN1
PWM1
TRACK/SS2 FREQ CLKIN CLKOUT PHSMD PGOOD2 PWMEN2 PWM2
LTC3860
0.01μF
470μF
22μF
1μF
V
IN
7V TO 14V
V
CC
5V
RUN1
V
DIFF1
CLOCKIN
600kHz
SYNC INPUT
TRACK/SS1
100k
49.9k
OPEN
(OPT)
OPEN
(OPT)
OPEN
(OPT)
OPEN
(OPT)
PWM1
I
AVG1
PWM3
100pF
2.2Ω
0.22μF
SW1
SW2
5V
0.22μF
0.22μF
V
CC
V
CC
47pF
1000pF
COMP1
470pF
4.7k
220Ω20k
20k
47pF
1000pF
470pF
4.7k
220Ω
V
DIFF4
20k
10k
45.3k
4.7μF
1μF
V
IN
2.2Ω
V
IN
0.22μF
5V
V
CC
22μF
4.7μF
1μF
2.3k
2.3k
V
CC
FB1
COMP1
VSNSOUT
VSNSN
VSNSP
COMP2
FB2
RUN1
I
LIM1
ISNS1P
ISNS1N
ISNS2N
ISNS2P
I
LIM2
RUN2
V
OS4P
V
OS4N
V
CC
COMP1
PWM4
TRACK/SS1
VINSNS
SGND SGND
I
AVG
PGOOD1
PWMEN1
PWM1
TRACK/SS2 FREQ CLKIN CLKOUT PHSMD PGOOD2 PWMEN2 PWM2
LTC3860
470μF
22μF
47μF
6.3V
s6
0.3μH
0.3μH
0.3μH
0.3μH
1μF
V
IN
7V TO 14V
V
CC
5V
RUN1
TRACK/SS1 I
AVG1
49.9k
49.9k
OPEN
(OPT)
OPEN
(OPT)
OPEN
(OPT)
45.3k
100k
V
CC
OPEN
(OPT)
2.2Ω
0.22μF
SW3
SW4
3860 TA05
5V
0.22μF
0.22μF
0.01μF
RUN2
V
CC
4.7μF
1μF
V
IN
2.2Ω
V
IN
0.22μF
5V
330μF
2.5V
s6
V
OUT1
1.2V
75A
V
CC
22μF
4.7μF
1μF
2.32k
2.32k
47Ω
V
OSP
47μF
s3
330μF
s3
V
OUT4
1.8V
25A
47Ω
V
OS4P
V
CIN
DISABLE
PWM
V
IN
R2J20602
REG5V BOOT
V
SWH
V
LDRV
CGND PGND
V
CIN
DISABLE
PWM
V
IN
R2J20602
REG5V BOOT
V
SWH
V
LDRV
CGND PGND
V
CIN
PWM
DISABLE
V
IN
R2J20602
REG5V BOOT
V
SWH
V
LDRV
CGND PGND
V
CIN
PWM
DISABLE
V
IN
R2J20602
REG5V BOOT
V
SWH
V
LDRV
CGND PGND
47Ω
V
OSN
47Ω
V
OS4N
4.7μF
4.7μF
V
CC
4.7μF
4.7μF