 |
Electronic Components Datasheet Search |
|
|
Electronic Components Datasheet Search |
|
MC34063A Datasheet(PDF) 13 Page - Texas Instruments |
|
|
||||||||||||||||||||||||||||||
MC34063A Datasheet(HTML) 13 Page - Texas Instruments |
|
|
13 / 30 page 
Q S R CT Ipk Q2 Q1 2 1 CT Comparator _ + 1.25-V Reference Regulator 4 5 3 8 180 W 7 6 RSC 0.22 W 47 kW R2 L 170 mH CO 1N5819 330 mF 1500 pF R1 2.2 kW 100 mF + + VCC VOUT 28 V/175 mA 1.0 mH 100 mF + Optional Filter VIN 12 V V OUT = 1.25 (1+ R2 R1 ) MC33063A, MC34063A www.ti.com SLLS636N – DECEMBER 2004 – REVISED JANUARY 2015 9.2.2 Step-Up Converter Application Figure 10. Step-Up Converter 9.2.2.1 Design Requirements The user must determine the following desired parameters: Vsat = Saturation voltage of the output switch VF = Forward voltage drop of the chosen output rectifier The following power-supply parameters are set by the user: Vin = Nominal input voltage Vout = Desired output voltage Iout = Desired output current fmin = Minimum desired output switching frequency at the selected values of Vin and Iout Vripple = Desired peak-to-peak output ripple voltage. The ripple voltage directly affects the line and load regulation and, thus, must be considered. In practice, the actual capacitor value should be larger than the calculated value, to account for the capacitor's equivalent series resistance and board layout. Copyright © 2004–2015, Texas Instruments Incorporated Submit Documentation Feedback 13 Product Folder Links: MC33063A MC34063A |
|
English ▼
Chinese
German
Japanese
Russian
Korean
Spanish
French
Italian
Portuguese
Polish
Vietnamese
