Switching Type Regulator ICs SI-3201S
Electrical Characteristics
Line Regulation
5.10
Load Regulation
5.15
5.10
Output voltage V
O
(V)
Rise Characteristics
6
5
Output voltage V
O
(V)
5.05
Output voltage V
O
(V)
5.05
5.00
4.95
4.90
4.85
4
3
2
1
0
Io = 0A
= 1A
= 2A
= 3A
5.00
4.95
Io
=
0A
=
1A
=
2A
=
3A
V
IN
=
18V
=
10V
=
7V
4.90
4.85
0
5
10
15
20
25
30
35
Input voltage V
IN
(V)
0
0.5
1.0
1.5
2.0
2.5
3.0
0
2
4
6
8
10
Output current I
O
(A)
Input voltage V
IN
(V)
Efficiency Curve
90
Overcurrent Protection Characteristics
6
5
Output voltage V
O
(V)
Overcurrent Protection Temperature Characteristics
6
5
Output voltage V
O
(V)
80
70
Efficiency
V
IN
=
18V
=
10V
=
7V
4
3
2
1
0
V
IN
=18V
= 10V
= 7V
(%)
4
3
2
1
0
T
C
= +100, 25, --20ºC
60
50
40
0
0.5
1.0
1.5
2.0
2.5
3.0
Output current I
O
(A)
0
1.0
2.0
3.0
4.0
5.0
0
1.0
2.0
3.0
4.0
5.0
Output current I
O
(A)
Output current I
O
(A)
Ta —P
D
Characteristics
25
With infinite heatsink
With silicone grease
Heatsink: aluminum
Power Dissipation P
D
(W)
20
15
10
5
0
–40
0
40
80
120
160
Operating temperature Ta (ºC)
23
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