Datasheet

LTC3407-3
6
34073fb
BLOCK DIAGRAM
1
2
9
10
8
3
4
11
5
–
+
–
+
–
+
–
+
EA
UVDET
OVDET
0.6V
V
FB
7
0.65V
0.55V
–
+
0.65V
UV
OV
I
TH
R3
R1
SWITCHING
LOGIC
AND
BLANKING
CIRCUIT
S
R
Q
Q
RS
LATCH
BURST
–
+
I
COMP
I
RCMP
ANTI
SHOOT-
THRU
BURST
CLAMP
SLOPE
COMP
EN
SLEEP
POR
COUNTER
0.6V REF OSC
OSC
REGULATOR 2 (IDENTICAL TO REGULATOR 1)
R1 = 240k, R3 = 120k FOR CHANNEL 1
R1 = 270k, R2 = 60k FOR CHANNEL 2
PGOOD1
PGOOD2
SHUTDOWN
V
IN
V
IN
V
IN
6
REGULATOR 1
SW1
GND
POR
GND
SW2
34073 BD
5Ω
MODE/SYNC
V
OUT1
RUN1
RUN2
V
OUT2