LT3570
8
3570fb
BLOCK DIAGRAM
Figure 1. Block Diagram
S
R6
Q1
L1
GND
D1
BIAS
V
IN2
SYNC
R
T
BOOST
SW2
SS2
FB2
D2
C2
R2B
C6B
SHDN1 SHDN2
SW1
788mV
FB1
C6A
3570 BD
R2A
SS1
SHDN3
R
788mV
788mV
Q2
4.5µA
C5
L2
D3
Q
R5
–
+
V
C2
V
C1
A6
–
+
A2
A8
S
R
Q
A4
–
+
–
+
+
–
+
+
R4
A7
–
+
A3
–
+
A11
A9
OSCILLATOR
A10
REGULATOR
A5
R1B
Q3
R1C
A1
V
IN1
V
IN3
FB3
NPN_DRV
R3A
R1A
C1
C3
R2C
C4A
R3B
C4B
4.5µA
