Product Diagram

5
5
4
4
3
3
2
2
1
1
D D
C C
B B
A A
OVP=20.8V UVP=4.25V
参数待定
输入电源范围控制电路
系统电源 /BUCK-5V
外设电源 /BUCK-5.1V
正常范围 10V 以下，二极管和电容可以 NC ；
Vout=2.5*(1+R1/R2)+If*R1
4A
4A
4A
5A DC-DC
Ra
Rb
Vo=0.6X(1+Ra/Rb)Tss=Css*0.6V/10uA
Revised 2020/11/10
Ra
Rb
Vo=0.6X(1+Ra/Rb)Tss=Css*0.6V/10uA
Revised 2020/11/10
VBUS_TYPEC
VBUS_TYPEC
VCC5V0_SYSVBUS_TYPEC_IN VCC4V2_SYS
EX_5V
VBUS_TYPEC
VBUS_TYPEC_IN
VBUS_TYPEC_IN
VBUS_TYPEC
EX_5V_EN[15]
Project:
File:
Date:
Designed by:
Rev:
Sheet: of
Monday, December 20, 2021
17.POWER IN
E679524
ZHangliub in 17 32
A0
Project:
File:
Date:
Designed by:
Rev:
Sheet: of
Monday, December 20, 2021
17.POWER IN
E679524
ZHangliub in 17 32
A0
Project:
File:
Date:
Designed by:
Rev:
Sheet: of
Monday, December 20, 2021
17.POWER IN
E679524
ZHangliub in 17 32
A0
R74 120K_1%
C472
NC
C0402
L1 4.7uH/5A
L0630
C168
10uF/35V
C1206
C678
22uF/10V
C0805
R76
20K_1%
C685
NC/22uF/10V
C0805
R255
100K
R0402
U38
CJ431
SOT-23
23
1
C169
0.1uF/50V
C0603
U46
SY8205FCC/5A
PGND
9
EN
3
BS
1
FB
5
SS
4
VCC
6
PVIN
7
LX
2
PVIN
8
U37
CJ431
SOT-23
23
1
C679
22uF/10V
C0805
C680
10uF/35V
C1206
C674NC
D17
ZMM15
sod-123
1 2
C686
NC/22uF/10V
C0805
R437
10K
R0402
C167
0.1uF/50V
C0603
D9 1N4148WS sod-323
12
C450
10nF/50V
C0603 C170 0.1nF/50V
C6750.1uF/50V
R621
100K
R0402
C178
0.1uF/16V
C0402
C681
0.1uF/50V
C0603
R623 100K_1%
Q7
2N7002
sot23
3
1
2
C6761uF/16V
C176
10uF/10V
C0603
C682
0.1uF/50V
C0603
R438
100K
R0402
R403
33K_1%
R0402
R75
100K
R0402
R624
13K_1%
L73 4.7uH/5A
L0630
C683
0.1uF/16V
C0402
R436 4.7K R0402
C684
10uF/10V
C0603
D16
SMAJ24CA
SMAF
C250
22uF/10V
C0805
Q2
VBZA4953
SOP8P1_27L5_0
S2
1
G2
2
S1
3
G1
4
D11
5
D21
6
D12
7
D22
8
R302
47K_1%
R0402
C174NC
Q11
MMBT3906
sot23
1
2
3
C349
22uF/10V
C0805
C677 1nF/25V
C1770.1uF/50V
R433
14.7K_1%
R0402
R625
10K
R0402
TP117
TP-1MM
C471
NC
C0402
C6731uF/16V
R434
2K_1%
R0402
U4
SY8205FCC/5A
PGND
9
EN
3
BS
1
FB
5
SS
4
VCC
6
PVIN
7
LX
2
PVIN
8
TP118
TP-1MM
R298
100K
R0402
R303
10K
R0402
POW_EN