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PT78ST112T Datasheet(PDF) 2 Page - Texas Instruments |
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PT78ST112T Datasheet(HTML) 2 Page - Texas Instruments |
2 / 7 page For technical support and more information, see inside back cover or visit www.ti.com/powertrends Typical Characteristics 0 0.2 0.4 0.6 0.8 1 1.2 1.4 1.6 913 17 21 25 0 0.2 0.4 0.6 0.8 1 1.2 1.4 1.6 9 12 1518212427 30333639 0 0.2 0.4 0.6 0.8 1 1.2 1.4 1.6 16 19 22 25 28 31 34 37 40 PT78ST133, 3.3 VDC (See Note 1) PT78ST105, 5.0 VDC (See Note 1) PT78ST112, 12.0 VDC (See Note 1) Efficiency vs Output Current Ripple vs Output Current Thermal Derating (Ta) (See Note 2) Power Dissipation vs Output Current Iout-(Amps) Iout-(Amps) Iout-(Amps) Iout-(Amps) Iout-(Amps) Iout-(Amps) Iout-(Amps) Iout-(Amps) Iout-(Amps) Vin-(Volts) Vin-(Volts) Vin-(Volts) 40 50 60 70 80 90 100 0 0.25 0.5 0.75 1 1.25 1.5 9.0V 12.0V 15.0V 20.0V 26.0V Vin 40 50 60 70 80 90 100 0 0.25 0.5 0.75 1 1.25 1.5 16.0V 18.0V 24.0V 30.0V 38.0V Vin 0 50 100 150 200 250 300 0 0.25 0.5 0.75 1 1.25 1.5 38.0V 30.0V 24.0V 18.0V 16.0V Vin 0 20 40 60 80 100 00.25 0.5 0.7511.25 1.5 26.0V 20.0V 15.0V 12.0V 9.0V Vin 0 0.5 1 1.5 2 2.5 3 0 0.25 0.5 0.75 1 1.25 1.5 38.0V 30.0V 24.0V 18.0V 16.0V Vin 0 0.2 0.4 0.6 0.8 1 1.2 1.4 1.6 1.8 00.25 0.5 0.7511.25 1.5 26.0V 20.0V 15.0V 12.0V 9.0V Vin 85°C 60°C 70°C 85°C 85°C 70°C Note 1: All data listed in the above graphs, except for derating data, has been developed from actual products tested at 25°C. This data is considered typical data for the ISR. Note 2: Thermal derating graphs are developed in free air convection cooling of 40-60 LFM. (See Thermal Application Notes.) 40 50 60 70 80 90 100 0 0.25 0.5 0.75 1 1.25 1.5 9.0V 12.0V 18.0V 24.0V 30.0V 38.0V Vin 0 30 60 90 120 150 0 0.25 0.5 0.75 1 1.25 1.5 38.0V 30.0V 24.0V 18.0V 12.0V 9.0V Vin 0 0.5 1 1.5 2 2.5 0 0.25 0.5 0.75 1 1.25 1.5 38.0V 30.0V 24.0V 18.0V 12.0V 9.0V Vin 60°C 70°C 60°C Efficiency vs Output Current Efficiency vs Output Current Ripple vs Output Current Ripple vs Output Current Thermal Derating (Ta) (See Note 2) Thermal Derating (Ta) (See Note 2) Power Dissipation vs Output Current Power Dissipation vs Output Current 1.5 Amp Positive Step-Down Integrated Switching Regulator PT78ST100 Series |
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