LTC3723-2 Linear Technology, LTC3723-2 Datasheet - Page 9

• Manufacturer Part Number: LTC3723-2
• Description: Synchronous Push-Pull PWM Controllers
• Manufacturer: Linear Technology

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