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MC33063AP-P Datasheet(PDF) 8 Page - Texas Instruments |
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MC33063AP-P Datasheet(HTML) 8 Page - Texas Instruments |
8 / 30 page 8 7 6 1 2 R* * R 0 for constant Vin 8 7 6 1 2 VOUT RSC VIN RSC VIN VOUT a) EXTERNAL npn SWITCH b) EXTERNAL npn SATURATED SWITCH (see Note A) 7 → MC33063A, MC34063A SLLS636N – DECEMBER 2004 – REVISED JANUARY 2015 www.ti.com 9 Application and Implementation NOTE Information in the following applications sections is not part of the TI component specification, and TI does not warrant its accuracy or completeness. TI’s customers are responsible for determining suitability of components for their purposes. Customers should validate and test their design implementation to confirm system functionality. 9.1 Application Information 9.1.1 External Switch Configurations for Higher Peak Current A. If the output switch is driven into hard saturation (non-Darlington configuration) at low switch currents ( ≤300 mA) and high driver currents ( ≥30 mA), it may take up to 2 μs to come out of saturation. This condition will shorten the off time at frequencies ≥30 kHz and is magnified at high temperatures. This condition does not occur with a Darlington configuration because the output switch cannot saturate. If a non-Darlington configuration is used, the output drive configuration in Figure 7b is recommended. Figure 5. Boost Regulator Connections for IC Peak Greater Than 1.5 A 8 Submit Documentation Feedback Copyright © 2004–2015, Texas Instruments Incorporated Product Folder Links: MC33063A MC34063A |
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