Datasheet

LTC3604
8
3604f
FUNCTIONAL BLOCK DIAGRAM
–
++
–
+
–
+
V
IN
V
IN
15k
Q6
RUN
SWITCH
LOGIC
AND
ANTI-
SHOOT
THROUGH
BG
ON
Q1
Q2
0.48V 1.25V
RUN
EA
INTERNAL
SOFT-START
SS
Q4
TRACK/SS
C
SS
3604 BD
SGND
R2
R1
RUN
PGND
PGOOD
INTV
CC
FB
SW
TG
V
IN
C
IN
BOOST
SENSE
+
SENSE
–
–
+
–
+
OV
0.648V
–
+
0.3V
FOLDBACK
FOLDBACK
DISABLED
AT START-UP
UV
0.552V
6V0.72V
180k
V
ON
V
ON
INT
VCC
M2
M1
L1
C
OUT
INTV
CC
ITH
R
C
C
C1
C
VCC
C
BOOST
–
+
–
+
1.4µA
I
THB
I
CMP
I
REV
3.3V
REG
I
ON
CONTROLLER
OSC
PLL-SYNC
OSC
R
0.6V
REF
SQ
I
ON
MODE/SYNC
R
RT
RT
t
ON
=
V
VON
I
ION