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Switch Mode power SupplyReference ManualSMPSRM/DRev. 4, Apr 2014 SCILLC, 2014Previous Edition 2002 All Rights Reserved 2ON Semiconductor and are registered trademarks of Semiconductor Components Industries, LLC (SCILLC). SCILLC owns the rights to a number of patents, trademarks,copyrights, trade secrets, and other intellectual property. A listing of SCILLC s product/patent coverage may be accessed at SCILLCreserves the right to make changes without further notice to any products herein. SCILLC makes no warranty, representation or guarantee regarding the suitability of its products for anyparticular purpose, nor does SCILLC assume any liability arising out of the application or use of any product or circuit, and specifically disclaims any and all liability, including withoutlimitation special, consequential or incidental damages. Typical parameters which may be provided in SCILLC data sheets and/or specifications can and do vary in different applicationsand actual performance may vary over time.

SMPSRM www.onsemi.com 6 Ipk TIME Iload Imin Power Switch OFF Power Switch Power OFF Switch ON Power Switch ON Vsat Power SW Power SW DiodeDiode TIME Figure 1. A Basic Forward−Mode Converter and Waveforms (Buck Converter Shown) Vfwd INDUCTOR CURRENT (AMPS)

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