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Si9139 Datasheet, PDF (5/17 Pages) Vishay Siliconix – Multi-Output, Individual On/Off Control Power-Supply Controller
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New Product
Si9139
Vishay Siliconix
ORDERING INFORMATION
Part Number
Si9139DG – 3328
Si9139DG – 3325
Si9139DG – 3322
Si9139DG – 3320
Si9139DG – 3318
Si9139DG – 3315
Si9139DG – 2825
Si9139DG – 2822
Si9139DG – 2820
Si9139DG – 2818
Si9139DG – 2815
Si9139DG – 2522
Si9139DG – 2520
Si9139DG – 2518
Si9139DG – 2515
Si9139DG – 2220
Si9139DG – 2218
Si9139DG – 2215
Si9139DG – 2018
Si9139DG – 2015
Si9139DG – 1815
Si9139DG
Temperature
Range
-40 to 85_C
SMPSB, SMPSA
Output Voltages
3.3 V, 2.8 V
3.3 V, 2.5 V
3.3 V, 2.2 V
3.3 V, 2.0 V
3.3 V, 1.8 V
3.3 V, 1.5 V
2.8 V, 2.5 V
2.8 V, 2.2 V
2.8 V, 2.0 V
2.8 V, 1.5 V
2.8 V, 1.8 V
2.5 V, 2.2 V
2.5 V, 2.0 V
2.5 V, 1.8 V
2.5 V, 1.5 V
2.2 V, 2.0 V
2.2 V, 1.8 V
2.2 V, 1.5 V
2.0 V, 1.8 V
2.0 V, 1.5 V
1.8 V, 1.5 V
Contact factory for other
voltages
Evaluation
Board
Si9139DB
Temperature
Range
-40 to 85_C
Board Type
Surface Mount
TYPICAL CHARACTERISTICS (25_C UNLESS NOTED)
Efficiency vs. SMPS B Output Current
100
VIN = 5 V
90
VIN = 12 V
80
VIN = 24 V
70
SMPS A No Load
VOUT = 2.5 V
60
50
0.1
1
10
Load Current (A)
Document Number: 71841
S-22317—Rev. A, 16-Dec-02
Efficiency vs. Auxiliary SMPS C Output Current
(Buck-Boost Configuration)
85
Frequency = 300 kHz
VIN = 15 V
80
6V
75
30 V
70
65
SMPS A, B No Load
VOUT = 12 V
60
55
0.001
0.01
0.1
1
Current (A)
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