Datasheet

LT3694/LT3694-1
8
36941fb
BLOCK DIAGRAM
V
C1
GND
OUT2
FB2
0.75V
0.68V
0.9V
0.68V
0.75V
3µA
TRK/SS1
R2
R1
FB1
DA
SW
BST
FB3
0.75V
0.68V
TRK/SS3
DRV3
LIM3
60mV
PGOOD
PG1
CLK
BIAS
2V
PG1
CLK
60mV
1.2V
0.5V
LDO
LDO
TRK/SS2
DRV2
3µA
LIM2
EN/UVLO
BIAS
OUT1
OUT1
R
C
R
LIM2
R
LIM3
C
C
C
f
Σ
36941 F01
–
+
–
+
–
+
+
+
–
–
+
–
+
+
+
–
+
–
+
–
THERMAL
SHUTDOWN
OVERVOLTAGE
SHUTDOWN
MASTER
OSC
INT REG
AND REF
+
–
SLOPE
COMP
–
+
R
S O
–
+
–
+
–
+
+
RT SYNC
(LT3694)
CLKOUT
(LT3694-1)
SD
SD
I
LIMIT
CLAMP
3µA
V
IN
V
IN
C
IN
C3
L1
C1
OUT1
OUT3
OUT1
D1
V
IN
BUCK
ERROR
AMP
Figure 1. LT3694 Block Diagram with Typical External Components