Datasheet

LTC3723-1/LTC3723-2
9
372312f
RQ
S
Q
T
1.5A SINK
1A SOURCE
DRVA
Q
RQ
S
6
DRVB
4
1.5A SINK
1A SOURCE
SDRB
2
SDRA
3
SYNC
RECTIFIER
DRIVE
LOGIC
OUTPUT
DRIVE
LOGIC
FAULT
LOGIC
OSCILLATOR
PULSE-BY-PULSE
CURRENT LIMIT
300mV
372312 BD02
SPRG
16
DPRG
9
C
T
8
–
+
PULSE WIDTH
MODULATOR
ERROR
AMPLIFIER
+
–
SHUTDOWN
CURRENT
LIMIT
V
REF
13µA
50k
600mV
–
+
BLANK
7
CS
10
SS
14
COMP
1.2V
11
FB
13
+
–
SYSTEM
UVLO
V
CC
V
CC
GOOD
10µA
5V
–
+
+
–
650mV
UVLO
15
REF, LDO
1.2V
5V
REF GOOD
V
REF
1
V
CC
UVLO
10.25V “ON”
6V “OFF”
V
CC
5
GND
RAMP 9
–
+
BLOCK DIAGRA S
W
LTC3723-2 Block Diagram