Datasheet

LTC3535
8
3535fa
BLOCK DIAGRAM
10
Σ
+
–
GATE DRIVERS
AND
ANTI-CROSS
CONDUCTION
LOGIC
CLK1
I
PK
I
PK
COMP
SLOPE
COMP
I
ZERO
COMP
ERROR AMP
SLEEP COMP
I
ZERO
WAKE
EXPOSED
PAD
+
–
WELL
SWITCH
MODE
CONTROL
UVLO
V
REF
V
REF1
4M
SHDN1
V
BEST
START-UP
1MHz
OSC
TSD
THERMAL
SHUTDOWN
SHUTDOWN
ANTI-RING
V
SEL
V
IN1
2
1
SW1
V
OUT
L1
4.7µH
V
B
SHUTDOWN
CLAMP
C
SS
V
REF
V
OUT1
12
13
GND
3535 BD
6
GND
3
FB1
R2
C
OUT1
10µF
V
OUT1
1.5V
TO 5.25V
R1
11
C
IN
2.2µF
V
IN1
0.8V
TO 5V
Σ
+
–
GATE DRIVERS
AND
ANTI-CROSS
CONDUCTION
LOGIC
CLK2
I
PK
I
PK
COMP
SLOPE
COMP
I
ZERO
COMP
ERROR AMP
SLEEP COMP
I
ZERO
WAKE
+
–
WELL
SWITCH
MODE
CONTROL
UVLO
V
REF
V
REF2
4M
V
BEST
START-UP
1MHz
OSC
TSD
THERMAL
SHUTDOWN
SHUTDOWN
ANTI-RING
V
SEL
V
IN2
4
V
OUT2
V
B
SHUTDOWN
CLAMP
C
SS
V
REF
V
OUT2
9
FB2
R4
C
OUT2
10µF
V
OUT2
1.5V
TO 5.25V
R3
8
C
IN2
2.2µF
V
IN2
0.8V
TO 5V
+
–
SHDN2
7
V
IN2
5
SW2
L2
4.7µH
+
–