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SI9139DG Datasheet(PDF) 6 Page - Vishay Siliconix |
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SI9139DG Datasheet(HTML) 6 Page - Vishay Siliconix |
6 / 17 page 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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