Datasheet

7
LT3466-1
34661f
BLOCK DIAGRA
W
–
+
–
+
Σ
–
+
+
EAEA
PWM
COMP
R
SNS1
R
SNS2
OSC
C3
V
OUT2
DRIVER
L2
SW2
0.8V
EXPOSED
PAD
20k
FB1
CONVERTER 1 CONVERTER 2
0.2V
80k
SHDN
CTRL2
7
11
CTRL1
9
–
+
–
+
+
START-UP
CONTROL
REF 1.25V
PWM
LOGIC
5
4
V
IN
V
IN
R
T
3
R
T
8
FB2
R2
R1
R
FB1
34661 F02
6
–
+
Σ
OSC
SW1
C1
L1
DRIVER
1
2
10
V
OUT1
C2
PWM
LOGIC
OSC
RAMP
GEN
OSC
OVERVOLT
DETECTION
OVERVOLT
DETECTION
Q1 Q2
A2
A1 A1
A2
A3
PWM
COMP
A3
Figure 2. Block Diagram