Dropper Type Regulator ICs
[2-output]
SI-3101S
Electrical Characteristics
Line Regulation (1)
5.1
V
C
= 5 (V)
I
O2
= 0 (A)
Output voltage V
O
(V)
Output voltage V
O
(V)
Line Regulation (2)
5.1
V
C
= 5 (V)
I
O1
= 0 (A)
Load Regulation (1)
5.1
V
C
= 5 (V)
I
O2
= 0 (A)
Output voltage V
O
(V)
I
O1
=
0mA
50mA
I
O2
=
0A
0.3A
5.0
V
IN
=
6V 14V
5.0
22V
5.0
70mA
0.5A
4.9
0
0
5
10
15
20
25
4.9
0
0
5
10
15
20
25
4.9
0
0
10
20
30
40
50
60
70
Input voltage V
IN
(V)
Input voltage V
IN
(V)
Output current I
O
(mA)
Load Regulation (2)
5.1
V
C
= 5
(V)
I
O1
= 0
(A)
Output voltage V
O
(V)
Rise Characteristics
6
Quiescent Circuit Current
10
I
O1
= 0 (A)
V
c
= 0 (V)
5
4
3
2
1
Output voltage V
O
(V)
V
IN
=
6V,14V
Load resistor
100Ω
5.0
22V
71.4Ω
Quiescent current lq (mA)
5
4.9
0
0
0.1
0.2
0.3
0.4
0.5
0.6
0
0
2
4
6
8
10
0
0
5
10
15
20
Output current I
O
(A)
Input voltage V
IN
(V)
Input voltage V
IN
(V)
ON/OFF Control Characteristics
6
5
Output voltage V
O2
(V)
Overcurrent Protection Characteristics (1)
6
5
Output voltage V
O1
(V)
Overcurrent Protection Characteristics (2)
6
5
Output voltage V
O2
(V)
4
3
2
V
IN
=
14V, 22V
4
3
2
1
0
I
O2
= 0 (A)
V
C
= 5 (V)
V
IN
=
6V
14V
22V
4.5V
V
IN
=
6V
14V
22V
4
3
2
1
0
6V
4.5V
I
O1
= 0 (A)
V
C
= 5 (V)
OFF
1
0
0
1
2
3
4
ON
5
6
0
0.05
0.1
0.15
0
0.1
0.2 0.3 0.4
0.5 0.6 0.7 0.8
Output ON/OFF control voltage V
C
(V)
Output current I
O
(A)
Output current I
O
(A)
Thermal Protection Characteristics
6
5
Output voltage V
O1
(V)
Overvoltage Protection Characteristics
6
Ta—P
D
Characteristics
20
With infinite heatsink
With silicone grease G746
(Shin-Etsu Chemical)
Heatsink: aluminum
V
IN
= 6 (V)
I
O1
= I
O2
= 5 (mA)
5
Power Dissipation P
D
(W)
Output voltage V
O
(V)
4
3
2
1
0
0
130
140
150
160
Ambient temperature Ta (ºC)
4
3
2
1
I
O1
= I
O2
= 5 (mA)
V
C
= 5 (V)
V
O1
V
O2
15
200 • 200 • 2mm (2.3ºC/W)
10
100 • 100 • 2mm (5.2ºC/W)
75 • 75 • 2mm (7.6ºC/W)
5
Without heatsink
0
10
20
30
40
0
--30 --20 0
20
40
60
80
100 115
Input voltage V
IN
(V)
Operating temperature Ta (ºC)
Note on Thermal Protection Characteristics:
The thermal protection circuit is intended for protection against heat
during instantaneous short-circuiting. Its operation, including reliability,
is not guaranteed for short-circuiting over an extended period of time.
13
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