LTC3860_15 Datasheet, PDF (29/36 Pages) Linear Technology – Dual, Multiphase Step-Down Voltage Mode DC/DC Controller with Current Sharing

LTC3860
TYPICAL APPLICATIONS
Quad-Phase Single Output with DRMOS
2.2Ω
V_IN
7V TO 14V
RUN1
470μF
TRACK/SS1
0.01μF
V_CC
5V
1μF
V_DIFF
1000pF
20k 220Ω
COMP1
47pF
V_DIFF
V_OSN
V_OSP
20k
470pF
V_CC
4.7k
V_CC
FB1
COMP1
VSNSOUT
VSNSN
VSNSP
COMP2
FB2
V_{CC IAVG1}
V_CC
100pF
100k
OPEN
PWM1
(OPT)
4.7μF
OPEN
(OPT)
LTC3860
RUN1
I_LIM1
ISNS1P
ISNS1N
ISNS2N
ISNS2P
I_LIM2
RUN2
49.9k
V_CC
RUN1
0.22μF
0.22μF
V_CIN V_IN REG5V BOOT
DISABLE
PWM ^{R2J20602 VSWH}
CGND V_LDRV PGND
4.7μF
5V
5V
4.7μF
TRACK/SS1
V_CC
PWM2
V_CC
OPEN
(OPT)
OPEN
(OPT)
CGND V_LDRV
PWM
DISABLE ^R2J20602
PGND
V_SWH
V_CIN V_IN REG5V BOOT
4.7μF _2.2Ω ^22μF
V_IN
7V TO 14V
V_CC
5V
3860 TA03
4.7μF
V_IN
2.2Ω
470μF
1μF
TRACK/SS1
V_CC
V_CC FB1
COMP1
VSNSOUT
VSNSN
VSNSP
COMP2
V_CC FB2
TRACK/SS1
45.3k
V_CC
V_CIN V_IN REG5V BOOT
I_AVG1
PWM3
OPEN
(OPT)
RUN1
DISABLE
PWM ^{R2J20602 VSWH}
CGND
OPEN
(OPT)
V_LDRV PGND
LTC3860
RUN1
I_LIM1
ISNS1P
ISNS1N
ISNS2N
ISNS2P
I_LIM2
RUN2
49.9k
V_CC
RUN1
0.22μF
0.22μF
4.7μF
5V
5V
4.7μF
V_CC
PWM4
OPEN
(OPT)
OPEN
(OPT)
CGND V_LDRV
PWM
DISABLE ^R2J20602
PGND
V_SWH
V_CIN V_IN REG5V BOOT
4.7μF _2.2Ω ^22μF
0.22μF
1μF
SW1 ^0.4μH
2k
V_IN
22μF
2k
SW2 ^0.4μH
0.22μF
1μF
V_OSP
47Ω
V_IN
47μF
22μF
6.3V
s8
V_OUT1
1.2V
330μF _100A
2.5V
s8
0.22μF
1μF
SW3 ^0.4μH
47Ω
V_OSN
2k
2k
SW4 ^0.4μH
0.22μF
1μF
V_IN
3860fc
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