Datasheet

LTC3520
10
3520fa
BLOCK DIAGRAM
R
T
+
–
+ –
+
–
+
–
+
–
+
+
–
+
–
+
–
+
+
–
+
–
14
13
12 716 21
2
3
8
6
5
23
24 22 20 19
18
17
15
4
9
10
11
1
+
BUCK-
BOOST
PWM
LOGIC
BANDGAP
REFERENCE
THERMAL
SHUTDOWN
INTERNAL
V
CC
SLOPE
COMPENSATION
3520 F02
+ –
BUCK
PWM
LOGIC
GATE
DRIVERS
AD
B
PGND1 PGND1
C
0.56A
OSC
FB1
SS1
PWM1
2A
3A
0.786V
0.782V
0.790V
DISABLE
1.25A
SD1
SD3
A
IN
A
OUT
SV
IN
*
5
μA
5μA
FB2
*PINS SV
IN
, PV
IN1
, PV
IN2
AND PV
IN3
MUST BE CONNECTED TOGETHER IN THE APPLICATION.
Gm
SS2
V
C1
PV
IN2
*
SW2
PGND2
0A
SD2PWM2PGND1SGND
PV
IN1
*PV
IN3
* SW1A SW1B V
OUT1
Gm