Datasheet

LTC3442
7
3442fb
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BLOCK DIAGRAM
–
+
–
+
–
+
–
+
–
+
–
+
–
+
9
PWM
LOGIC
GATE
DRIVERS
AND
ANTICROSS
CONDUCTION
PGND
UVLO
5A
2.3V
OSC
PEAK CURRENT
LIMIT
SW A
SW1
V
IN
V
CC
V
IN
V
IN
SW2
SW D
ERROR
AMP
1.22V
REVERSE
AMP
SW B
0.95V
AVERAGE
I
LIM
SW C
2
4 6
SGND
6
V
OUT
8
FB
12
BURST
7
V
C
11
1
SHDN/SS
2
R
T
3442 BD
PWM
COMPARATORS
–
+
THERMAL
SHUTDOWN
A
V
= 6
SHUTDOWN
SOFT-START
SHUTDOWN
1.22V
V
REF
10
R
LIM
AUTOMATIC
BURST MODE
CONTROL AND
VC HOLD
G
m
= 1/60k
3A
V
REF
SLEEP
SS