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XL1530E1 Datasheet(PDF) 6 Page - List of Unclassifed Manufacturers |
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XL1530E1 Datasheet(HTML) 6 Page - List of Unclassifed Manufacturers |
6 / 9 page Datasheet 3A 380KHz 18V Buck DC to DC Converter XL1530 Rev 1.0 www.xlsemi.com 6 Test Circuit and Layout guidelines Figure5. Standard Test Circuits and Layout Guides Select R1 to be approximately 2K, use a 1% resistor for best stability. C1 and CFF are optional; in order to increase stability and reduce the input power line noise, CIN and C1 must be placed near to VIN and GND; For output voltages greater than approximately 10V, an additional capacitor CFF is required. The compensation capacitor is typically between 100 pf and 33 nf, and is wired in parallel with the output voltage setting resistor, R2. It provides additional stability for high output voltage, low input-output voltages, and/or very low ESR output capacitors, such as solid tantalum capacitors. CFF=1/(31*1000*R2); This capacitor type can be ceramic, plastic, silver mica, etc. (Because of the unstable characteristics of ceramic capacitors made with Z5U material, they are not recommended.) |
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