8
EVAL-L9001 board schematic
Figure 9.
Board schematic
ADCMON
RSTN1
RSTN2
CONF3
CP
CP1
CP2
FB2
TWN
WDI
STBY
WDT
WDO
GND
GND
1
VDD2
GND
1
VADC
Keep this loop short
close to the pin.
Keep this loop short
close to the pin.
1
J2
VB
BOOT
C2
47uF/50V
GND
Imax = 3,5A
1
J8
GND
GND
1
GND
Use many vias over the GND planes
to freeze each other
C5
220nF/20V
C6
68nF/20V
BOOT
CP
1
BOOT
1
CP
1
CP2
1
CP1
CP2
CP1
Imax = 100mA
Imax = 100mA
GND
Imax = 3,5A
GND
Imax = 3,5A
R4
10k/0,5%
FB2
1
FB2
GND
Close to chip GND pin
R20
1k
R10
1k
C9
100nF/40V
GND
WAKE
1
WAKE
C11
47nF
GND
1
WDT
WDT
1
CONF1
1
CONF2
GND
R22
1k
1
WDI
R13
20k/0,5%
BOOT
C1
1uF
R15 10k
1
VDD1
C3
4,7uF/50V
C7
22uF/25V
C8
47uF/16V
1
J5
VADC
GND
1
RSTN2
4
VDDIO
5
ADCMON
2
RSTN1
3
CONF3
6
WAKE
7
V1O
8
VS
9
CP
10
CP2
11
CP1
12
V2O
13
VR1
14
FB2
15
VR2
16
CONF1
17
CONF2
18
WDO
24
WDT
23
STBY
22
WDI
21
TWN
20
VADC
19
E
X
-P
A
D
0
U1
L9001
GND
VDD1
VDD1
VDD2
VDD2
1
J10
VDD2
V2O
V2O
V1O
1
J6
VDD1
VDD2
1
CONF3
VS
VS
VS
VDDIO
R5
4.7k
VDDIO
R3
4.7k
VDDIO
R2
4.7k
R1
4.7k
R6
4.7k
VDDIO
V1O
VDDIO
VADC
VADC
ADCMON
RSTN1
RSTN2
WAKE_EXT
WAKE_EXT
1
VDDIO
1
STBY
1
V2O
1
V1O
1
VS
D1
STPS340B-TR
D2
STPS3L60SY
D3
STPS3L60SY
L1
10uH/4.9A
L3
10uH/2.6A
L2
22uH/4.6A
GND
C4
4,7uF/50V
1
J3
GND_ADC
GND
1
J7
GNDD1
1
J9
GNDD2
1
2
3
4
5
6
7
8
9
J1
CON9
GND
J4
Close
UM2598
-
Rev 1
page 10/15
UM2598
EVAL-L9001
board schematic
