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SI9139DG Datasheet(PDF) 6 Page - Vishay Siliconix

No. de pieza SI9139DG
Descripción Electrónicos  Multi-Output, Individual On/Off Control Power-Supply Controller
Download  17 Pages
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Fabricante Electrónico  VISHAY [Vishay Siliconix]
Página de inicio  http://www.vishay.com
Logo VISHAY - Vishay Siliconix

SI9139DG Datasheet(HTML) 6 Page - Vishay Siliconix

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Si9139
Vishay Siliconix
New Product
www.vishay.com
6
Document Number: 71841
S-22317—Rev. A, 16-Dec-02
TYPICAL CHARACTERISTICS (25_C UNLESS NOTED)
0.01
0
1
30
90
15
45
10
0.1
Efficiency vs. Auxiliary SMPS C Output Current
(Buck Configuration)
Output Current (A)
60
75
SMPS A, B No Load
VOUT = 2.1 V
VIN = 24 V
VIN = 12 V
VIN = 5 V
0.01
0
60
100
20
40
0.1
1
Efficiency vs. SMPS B Output Current
Load Current (A)
80
VIN = 5 V
SMPS A No Load
VOUT = 12.5 V
VIN = 12 V
TYPICAL WAVEFORMS
20.0
ms/div
PWM Loading B Converter
(VIN = 5.0 V, VOUT = 2.5 V)
VOUT
(100 mV/div)
Load
(1 A/div)
(VIN = 5.0 V, VOUT = 2.5 V)
PWM Unloading B Converter
20.0
ms/div
VOUT
(100 mV/div)
Load
(1 A/div)
(VIN = 5.0 V, VOUT = 2.5 V)
PSM to PWM B Converter
VOUT
(50 mV/div)
Load
(1 A/div)
50
ms/div
(0.1 A to 1.8 A)
PWM to PSM B Converter
VOUT
(50 mV/div)
Load
(1 A/div)
50
ms/div
(0.1 A to 1.8 A)
(VIN = 5.0 V, VOUT = 2.5 V)


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