
Figure 11.
Voltage regulators
Piano di gnd per i
componenti dello
stesso regolatore
Piano di gnd per i
componenti dello
stesso regolatore
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
1.2V
5.0V_SR
5.0V_SR
3.3V
C58
22uF
R18
249K
C60
47uF
10V
1206
R13
180K
C64
390pF
C67
470nF
R15
51K
C61
470nF
R17 0R
R14
430K
R111M
U3
A6986
RST
1
VBIAS
16
LX
14
LX
13
PGND
12
VCC
2
SS/INH
3
SYNCH
4
FSW
5
MLF
6
COMP
7
DELAY
8
VIN
15
PGND
11
SGND
10
FB
9
EX
P
1
7
C72
470pF
C73
27pF
C62
8.2nF
C65
22pF
50V
R12 0R
R161M
U2
A6986
RST
1
VBIAS
16
LX
14
LX
13
PGND
12
VCC
2
SS/INH
3
SYNCH
4
FSW
5
MLF
6
COMP
7
DELAY
8
VIN
15
PGND
11
SGND
10
FB
9
EX
P
1
7
C69
470nF
L4
4.7uH
R20
43K
R19
86K6
C63
68nF
C70
8.2nF
C59
470nF
L3 3.9uH
C66
15uF
C71
68nF
C68
15uF
UM2731
-
Rev 1
page
26
/37
UM2731
Schematic