Datasheet

LTC3544
8
3544fa
FUNCTIONAL DIAGRAMS
I
BIAS200A
SW200A
POWER
FETs
REG200A REG100
V
FB200A
5
2
I
BIAS300
SW300
POWER
FETs
REG300
V
FB300
8
10
SW100
V
FB100
13
11
SW200B
V
FB200B
4
1
7 6
PV
IN
PGND
0.8V
REF
OSC
V
CC
9
RUN300
16
RUN200B
12
RUN100
3
RUN200A GNDA
SHDN
RUN
LOGIC
I
BIAS100
POWER
FETs
REG200B
I
BIAS200B
3544 FD01
POWER
FETs
15 14
–
+
–
+
EA
–
+
V
SLEEP
I
TH
SWITCHING
LOGIC
AND
BLANKING
CIRCUIT
S
R
Q
Q
RS
LATCH
BURST
–
+
I
COMP
I
RCMP
ANTI
SHOOT-
THRU
SLOPE
COMP
SLEEP
0.8V V
REF
OSC
OSC
SHUTDOWN
REGULATOR
SWx
10Ω
3544 FD02
1
V
FBx
4
PV
IN
3
PGND
5
0.8V
BURST
CLAMP
SOFT-START