Requirements
AT91CAP9-STK Starter Kit User Guide
2-23
6351B–CAP–27-Jun-08
First AT73C224
– 5V/1A (SEPIC buck boost)
– 1.8V_FPGA/500mA (boost)
– 1.2V VBACKUP
Second AT73C224
– 3.3V/1AZ (SEPIC buck boost)
– 1.2V_CAP9/500 mA (boost)
– 1.8V_CAP9/200 mA (LDO)
1V8_SW 2
VIN_PMC
R11
10K
VIN_PMC_SHDN
1V8_FPGA
C35
470 nF
1
2
U4
AT73C224
VDD3
2
VO3
1
GND3
3
VDD4
23
VDDRTC
10
VO4
24
VBK
31
XIN
32
XOUT
30
CK32
29
VDDDIG
25
D1
26
D2
27
D4
13
D3
28
POK
14
ITB
15
VBG
8
VCAPN
7
VDD0
6
EN
12
VCAPP
4
VO1
18
DH1
19
VINT
5
GND2
17
SW2
16
VO2
11
VDD2
9
DL1
20
VSENSE
21
VDD1
22
GND/AVS S
33
5V
TP60
1
5V_ITB
TWCK
3V3
R167
10K
TWD
+
C34
33UF_10V
1
2
VBACKUP
C24
100 nF
1
2
R176
0R
1V8_FPGA
C26
22u F_12 10
1
2
TP8
+
C60
100 uF
1
2
Q1A
SI5515DC
2
7
1
8
Q1B
SI55 15DC
4
5
3
6
5VB_DL1
5VB_DH1
C23
1UF_16V
1
2
C25
10nF
1
2
5VB_SENSE
C32
1UF_ 16V
1
2
EN_PMC
VO3_PMC1
R8
0R047_ 2512
1
2
1V8_SW 2
Y1
32768Hz_1 2.5pF
FP GA_POK
L1
6,8
µ
H_2A4
1
2
C36
100nF
1
2
C206
4,7uF_ 16V
1
2
L21
6,8
µ
H_2A4
1
2
VO4_PMC1
C29
22p F
1
2
C33
22p F
1
2
VIN_PMC_SHDN
VIN_PMC_SHDN
L2
6
µ
H8_7 10mA
1
2
VIN_PMC_SHDN
C37
220 0pF
1
2
3V3
CAP9_POK
1V2_CAP9
1V2_SW 2
1V2_CAP9
U5
AT73C224
VDD3
2
VO3
1
GND3
3
VDD4
23
VDDRTC
10
VO4
24
VBK
31
XIN
32
XOUT
30
CK32
29
VDDDIG
25
D1
26
D2
27
D4
13
D3
28
POK
14
ITB
15
VBG
8
VCAPN
7
VDD0
6
EN
12
VCAPP
4
VO1
18
DH1
19
VINT
5
GND2
17
SW2
16
VO2
11
VDD2
9
DL1
20
VSENSE
21
VDD1
22
GND/AVSS
33
L5
6
µ
H8_710mA
1
2
C50
1UF_16 V
1
2
1V2_SW 2
C52
470nF
1
2
C54
2200pF
1
2
3V3_ITB
C45
4,7uF_16V
1
2
L3
6,8
µ
H_2A4
1
2
3V3
C46
22uF_1210
1
2
Q2A
SI5515DC
2
7
1
8
Q2B
SI5515DC
4
5
3
6
3V3BB_DL1
3V3BB_SENSE
3V3BB_DH1
R15
0R047_2512
1
2
L4
6,8
µ
H_2A4
1
2
R168
10K
TP64
1
+
C51
33UF_10V
1
2
TWCK
TWD
R177
0R
VIN_PMC_SHDN
+
C48
100uF
1
2
VIN_PMC_SHDN
R140
10K
VIN_PMC_SHDN
VIN_PMC_SHDN
1V8_CAP9
C49
4,7 uF_16V
1
2
VO3_PMC2
1V8_CAP9
3V3
C43
100nF
1
2
C38
1UF_16 V
1
2
C44
10nF
1
2
S4
BP
3
1
2
4
EN_PMC
TP9
TP63
1
R10
10K
C53
100nF
1
2
R139
10K