−
−
+
+
−
−
+
+
1
1
5
5
10
10
15
15
20
20
25
25
30
30
j
j
i
i
h
h
g
g
f
f
e
e
d
d
c
c
b
b
a
a
VIN
OUT
GND
3.3V
U1 · AMS1117-3.3
D1 · red
R1 · 220 Ω
U1 · AMS1117-3.3
R1 · 220 Ω
D1 · red
2
2
3
3
4
4
10
10
f
f
g
g
j
j
MODEL · DC simulation
Iout 7.19 mA
7.19 mA
7.19 mA
5 V
3.3 V
0 V
1.72 V
0 V
5 V
−
+
−
+
−
+
−
+
−
+
−
+
−
−
+
+
−
−
+
+
1
1
5
5
10
10
15
15
20
20
25
25
30
30
j
j
i
i
h
h
g
g
f
f
e
e
d
d
c
c
b
b
a
a
AMS1117
D1 · red
R1 · 220 Ω
U1 · AMS1117-3.3
U1 · AMS1117-3.3
R1 · 220 Ω
D1 · red
2
2
3
3
4
4
10
10
f
f
g
g
j
j
MODEL · DC simulation
Iout 7.19 mA
7.19 mA
7.19 mA
5 V
3.3 V
0 V
1.72 V
0 V
5 V
−
+
−
+
−
+
−
+
−
+
−
+
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