Datasheet

LTC3789
11
3789fa
block DiagraM
–
+
–
–
+
+
BOOST1
INTV
CC
V
IN
TG1
BG1
BG2
R
SENSE
R
SENSE2
PGND
FCB
FCB
INTV
CC
INTV
CC
INTV
CC
I
DREV
SW1
SW2
TG2
BOOST2
I
OSENSE
+
I
OSENSE
–
I
OS
SS
I
TH
V
FB
V
OUT
0.80V
3789 BD
OV
EA
BUCK
LOGIC
CHARGE
PUMP
BOOST1
CHARGE
PUMP
BOOST2
BOOST
LOGIC
SENSE
+
SENSE
–
–
+
I
REV
–
+
I
CMP
V
FLD
V
IN
SW1
1.2µA
SHDN
RUN
–
+
4.8V
5.5V
V
IN
V
IN
INTERNAL
SUPPLY
EXTV
CC
INTV
CC
SGND
+
5.5V
LDO
REG
EXTV
CC
5.5V
LDO
REG
–
+
–
+
–
+
0.86V
OV
0.74V
V
FB
OSCILLATOR
PHASE DET
FREQ
MODE/
PLLIN
220k
F
IN
PGOOD
3µA
–
I
LIM
SLOPE
10µA
+