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MB3775 Datasheet, PDF (7/25 Pages) Fujitsu Component Limited. – SWITCHING REGULATOR CONTROLLER | |||
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MB3775
s APPLICATION CIRCUIT
820pF
10kâ¦
2.3kâ¦
33kâ¦
+-
1µF
33kâ¦
+-
1µF
0.1µF
33kâ¦
330â¦
330â¦
9.1kâ¦
Fig. 1 - Chopper Type Step Down/Inverting
1
16
0.1µF
2
15
3
14
4
MB3775
13
1.9kâ¦
0.1µF
5
12
33kâ¦
6
11
7
10
8
9
VIN (10V)
56µH
-+
220µF
V0- (-5V)
120µH
-+
220µF
5.6kâ¦
470â¦
470â¦
-+
120µH
220µF
GND
V0+ (+5V)
820pF
10kâ¦
Fig. 2 - Chopper Type Step Up/Inverting
1
16
0.1µF
2
15
VIN (5V)
3
2.3kâ¦
4
5
33kâ¦
0.1µF
6
+-
33kâ¦
7
1µF
33kâ¦
8
MB3775
14
13
1.9kâ¦
0.1µF
12
33kâ¦
11
10
9
56µH
-+
220µF
+-
1µF
330â¦
330â¦
9.1kâ¦
V0- (-5V)
120µH
-+
220µF
3.9kâ¦
16kâ¦
120µH
100â¦
-+
GND
220µF
V0+ (+12V)
7
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