MB3775
■
APPLICATION CIRCUIT
Fig. 1 - Chopper Type Step Down/Inverting
V
IN
(10 V)
820 pF
1
10 kΩ
2
3
2.3 kΩ
4
5
33 kΩ
+
−
1
µF
33 kΩ
+
−
1
µF
5.6 kΩ
330
Ω
330
Ω
120
µH
−
16
15
14
56
µH
0.1
µF
MB3775
13
12
11
10
9
1.9 kΩ
0.1
µF
33 kΩ
−
0.1
µF
33 kΩ
6
7
8
+
220
µF
470
Ω
470
Ω
+
−
+
120
µH
9.1 kΩ
V
0-
(
−
5 V)
220
µF
GND
Fig. 2 - Chopper Type Step Up/Inverting
220
µF
V
0+
(+5 V)
V
IN
(5 V)
820 pF
1
10 kΩ
2
3
2.3 kΩ
4
5
33 kΩ
+
−
1
µF
33 kΩ
+
−
1
µF
330
Ω
3.9 kΩ
330
Ω
16
15
14
0.1
µF
MB3775
13
12
11
10
9
1.9 kΩ
0.1
µF
33 kΩ
−
56
µH
0.1
µF
33 kΩ
6
7
8
+
220
µF
16 kΩ
120
µH
100
Ω
−
120
µH
−
+
+
9.1 kΩ
V
0-
(
−
5
V)
220
µF
GND
220
µF
V
0+
(+12 V)
(Continued)
8