Schematics

5
5
4
4
3
3
2
2
1
1
D D
C C
B B
A A
51K//29.4K=51*29.4/(51+29.4)K=18.65K,
19K is needed for the best accuracy.
VCC_3.3V= 1.204*(1+ 51K/29.4K)=3.293V
VCC18= 1.175*(1+ 8.06K/15K)= 1.8064V
VCC_3.3V
VCC_SYS5V
VCC_3.3V VCC33 VCC33 VCC18
ISP_MODE[2,6]
Title
Size
Document Number Re v
Date: Sheet
of
<Doc> 2.0
LDO
B
37Monday, January 04, 2021
Title
Size
Document Number Re v
Date: Sheet
of
<Doc> 2.0
LDO
B
37Monday, January 04, 2021
Title
Size
Document Number Re v
Date: Sheet
of
<Doc> 2.0
LDO
B
37Monday, January 04, 2021
R93
29.4K
C87
10uF
C83
100pF
Q6
2N7002
D
G
S
C125
10uF
12
C112
100nF
C85
10uF
L19 30Z
1 2
+
C84
100uF
C121
10uF
12
R144
@100K
Q5
AO3401
D
G
S
R94
51K
R138
10K
R95 100k
C86
10uF
R151
15K
U10
TPS73701DRV
NR/FB
2
NC
5
EN
4
OUT
1
IN
6
GND
3
PAD
7
R141 1K
R150 8.06K 1%
R149 10K
C114
100nF
C126
100nF
U11
RT9179PB
VIN
1
GND
2
EN
3
FB
4
VOUT
5
C111
10uF
C113
10uF