SI9138 Datasheet, PDF (5/14 Pages) Vishay Siliconix – Multi-Output, Individual On/Off Control Power-Supply Controller

New Product
Si9138
Vishay Siliconix
TYPICAL CHARACTERISTICS (25_C UNLESS NOTED)
Efficiency vs. 3.3-V Output Current
100
Frequency = 300 kHz
90
V_IN = 6 V
80
30 V
15 V
70
5 V, 12 V No Load
60
Efficiency vs. 5.0-V Output Current
100
Frequency = 300 kHz
90 ^VIN ^{= 6 V}
15 V
80
30 V
70
3.3 V, 12 V No Load
60
50
0.001
0.01
0.1
1
10
Current (A)
50
0.001
0.01
0.1
1
10
Current (A)
Efficiency vs. 5- to 12-V Adjustable Output
Current (Output Set to 12 V)
85
Frequency = 300 kHz
V_IN = 15 V
80
6V
75
30 V
70
65
5 V, 3.3 V No Load
60
55
0.001
0.01
0.1
1
Current (A)
Document Number: 71446
S-20642—Rev. B, 13-May-02
www.vishay.com
5