Datasheet

LTC3856
37
3856f
Typical applicaTion
3856 F18
TG1
BOOST1
SW1
BG1
SENSE1
+
SENSE1
–
TG2
BOOST2
SW2
BG2
INTV
CC
INTV
CC
SENSE2
+
SENSE2
–
DIFFOUT
V
FB
ILIM
RUN
PGOOD
0.1µF
L1
0.22µH
22µF
Q2
RJK0330DPB
Q6
RJK0330DPB
Q1
RJK0305DPB
Q5
RJK0305DPB
0.001Ω
D1, CMDSH-3
PHASMD
MODE
ITEMP
FREQ
EXTV
CC
V
IN
V
IN
DIFFN
DIFFP
ISET
AVP
PGND
TK/SS
PLLIN
CLKOUT
I
TH
LTC3856
S
SGND
4.7µF
INTV
CC
0.1µF
INTV
CC
1nF
100Ω 100Ω
100Ω
100k
100Ω
22µF
V
IN
22µF
Q4
RJK0330DPB
Q8
RJK0330DPB
Q3
RJK0305DPB
Q7
RJK0305DPB
0.001Ω
D2, CMDSH-3
22µF
V
IN
1nF
100µF
6.3V
s4
330µF
2.5V
s4
V
OUT
1.5V/
50A
4.7µF
6.3V
+
10Ω 10Ω
V
IN
4.5V
TO 14V
V
IN
GND
180µF
16V
s2
+
INTV
CC
PGOOD
S
5.6k
1nF
S
100pF
30.1k
S
S
20k
0.1µF
2.2Ω
100k, 1%
S
0.1µF
L2
0.22µH
Figure 18. 1.5V/50A Converter Using Sense Resistors