LT1683
9
1683fd
BLOCK DIAGRAM
+
V
C
NFB
FB
1683 BD
SS
C
SS
SLEW
CONTROL
V
REG
V
IN
V
IN
C
IN
V5
TO
DRIVERS
T
QB
Q
FF
S Q
FF
R
OSCILLATOR
–
+
NEGATIVE
FEEDBACK
AMP
+
–
–
+
ERROR
AMP
1.25V
100k 50k
COMP
–
+
SENSE
AMP
SHDN R
VSL
R
CSL
R
CSL
REGULATOR
C
VC
R
T
C
T
C
T
R
T
R
VSL
CAP A
CAP B
GATE A
MA
G
CL
GATE B
PGND
CS
MB
C
VA
C
VB
R
SENSE
SYNC GND
SUB
