Datasheet

LTC3780
12
3780ff
For more information www.linear.com/LTC3780
block DiagraM
–
+
–
+
BOOST2
INTV
CC
V
IN
TG2
BG2
BG1
R
SENSE
PGND
FCB
FCB
INTV
CC
INTV
CC
INTV
CC
I
LIM
SW2
SW1
TG1
BOOST1
V
OSENSE
I
TH
V
FB
0.86V
V
OUT
0.80V
3780 BD
OV
EA
SHDN
RST
4(V
FB
)
RUN/
SS
BUCK
LOGIC
BOOST
LOGIC
SENSE
+
SENSE
–
–
+
I
REV
–
+
I
CMP
SLOPE
1.2V
4(V
FB
)
SS
1.2µA
100k
RUN
FCB
STBYMD
–
+
5.7V
6V
V
IN
V
IN
V
REF
INTERNAL
SUPPLY
EXTV
CC
INTV
CC
SGND
+
6V
LDO
REG
–
+
–
+
–
+
CLK
0.86V
0.74V
V
OSENSE
R
LP
C
LP
OSCILLATOR
PHASE DET
PLLFLTR
PLLIN
50k
F
IN
PGOOD