资料介绍
开关电源设计的散热分析技术
!!!! IC SIMPLE SWITCHERLM5576 LM25576 IC IC !!!!
1566 Frederik Dostal! 20072 !!!!JC IC !!!! JA IC PCB PCB !!!!
!!!! IC ǖ Pbias = Iq VIN ǖ Pcond = duty cycle RdsonIOUT2 ǖ Pswitch =!)IOUTVIN*/2F!)tLH + tHL* !!!!FtLH tHL !!!! , Rdson , ESR !!!! IC ICPCB JC. JC
30004609
1. 5V IOUT VIN
!!!! WEBENCH WebTHERM IC LM557 x LM2557 x SIMPLE SWITCHER 2 WebTHERM
AN-1566
2007 National Semiconductor Corporation
300046
www.national.com
AN-1566
30004610
2. WebTHERM
!!!!IC !!!!
!!!! IC !!!!JC
!!!! 125 C, 150 C SIMPLE SWITCHER LM2590HV.AQ
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www.national.com
2
AN-1566
3
www.national.com
ǖwww.national.com ǖ
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CSP-9-111C2 CSP-9-111S2CSP-9-111S2"" RoHS
AN-1566
National Semico