LT3511
6
3511fc
BLOCK DIAGRAM
FLYBACK
ERROR
AMP
MASTER
LATCH
CURRENT
COMPARATOR
BIAS
R1
R2
R5
V
OUT
+
V
OUT
–
V
IN
T
C
BIAS
SW
V
IN
V
IN
GND
V1
120mV
1.2V
V
C
D1
T1
N:1
I
2
R
SENSE
0.02
C2
C1
L1A L1B
R3
R4
C4
+
–
INTERNAL
REFERENCE
AND
REGULATORS
OSCILLATOR
TC
CURRENT
ONE
SHOT
R
Q
S
S
g
m
+
–
A1
+
–
A5
+
–
+
–
A2
A4
3µA
+
–
3511 BD
Q2
R6
C3
Q3
1.2V
Q4
Q1
DRIVER
EN/UVLO
R
FB
R
REF
