Datasheet

7
LT3466
3466fa
BLOCK DIAGRA
W
–
+
–
+
Σ
–
+
+
EAEA
PWM
COMP
R
SNS1
R
SNS2
OSC
C3
V
OUT2
DRIVER
L2
SW2
0.2V
20k
EXPOSED
PAD
20k
FB1
CONVERTER 1 CONVERTER 2
0.2V
80k
80k
SHDN
CTRL2
CTRL1
PIN NUMBERS CORRESPOND TO THE 10-PIN DFN PACKAGE
–
+
–
+
+
START-UP
CONTROL
REF 1.25V
PWM
LOGIC
V
IN
V
IN
R
T
R
T
FB2
R
FB2
R
FB1
3466 F02
–
+
Σ
OSC
SW1
C1
L1
DRIVER
V
OUT1
C2
PWM
LOGIC
OSC
RAMP
GEN
OSC
OVERVOLT
DETECTION
OVERVOLT
DETECTION
Q1 Q2
A2
A1 A1
A2
A3
PWM
COMP
A3
1
2
8
3 4
5
6
11
7
9
10
Figure 2. LT3466 Block Diagram