{"id":223295,"date":"2012-01-01T23:00:00","date_gmt":"2012-01-01T23:00:00","guid":{"rendered":"https:\/\/eenewseurope.artwhere.co\/convertisseurs-abaisseurs-synchrones-300ma-15v\/"},"modified":"2012-01-01T23:00:00","modified_gmt":"2012-01-01T23:00:00","slug":"convertisseurs-abaisseurs-synchrones-300ma-15v","status":"publish","type":"post","link":"https:\/\/www.ecinews.fr\/fr\/convertisseurs-abaisseurs-synchrones-300ma-15v\/","title":{"rendered":"Convertisseurs abaisseurs, synchrones, 300mA, 15V"},"content":{"rendered":"<p>Le LTC3103 ne consomme au repos que 2,6&micro;A. Ces composants sont id&eacute;als pour une grande vari&eacute;t&eacute; d&rsquo;applications aliment&eacute;es sur batterie incluant l&rsquo;alimentation des syst&egrave;mes de contr&ocirc;le industriels, les r&eacute;seaux de&nbsp;capteurs d&eacute;port&eacute;s, les syst&egrave;mes sans fil de faible puissance et les applications &agrave; r&eacute;cup&eacute;ration d&rsquo;&eacute;nergie. Les deux composants fonctionnent &agrave; partir d&rsquo;une gamme de tensions d&rsquo;entr&eacute;e de 2,5V &agrave; 15V, ce qui permet de travailler &agrave; partir d&rsquo;une large gamme de sources de tension en entr&eacute;e, comprenant les batteries &agrave; un ou plusieurs &eacute;l&eacute;ments, les supercondensateurs&nbsp;et les rails de tensions des syst&egrave;mes.<br \/>\nLes LTC3103 et LTC3104 fonctionnent &agrave; une fr&eacute;quence de d&eacute;coupage fixe de 1,2MHz et utilisent une d&eacute;tection synchrone pour atteindre des rendements de 95%. Pour les applications qui n&eacute;cessitent un faible niveau de bruit, les LTC3103 et LTC3104 peuvent fonctionner, tous les deux, en &ldquo;&nbsp;mode continu forc&eacute;&nbsp;&rdquo;, la fr&eacute;quence de commutation sera de 1,2MHz. Une commande permet d&rsquo;assurer, automatiquement, la transition du mode de fonctionnement &agrave; fr&eacute;quence fixe au mode de fonctionnement en Burst Mode, afin d&rsquo;atteindre un haut rendement sur une gamme tr&egrave;s large de courants dans la charge. La compensation interne, les bo&icirc;tiers DFN et MSOP de petite taille et la fr&eacute;quence de commutation fixe de 1,2MHz qui permet l&#8217;emploi de quelques petits composants externes, contribuent &agrave; la r&eacute;alisation de solutions d&#8217;empreinte tr&egrave;s compacte. L&rsquo;entr&eacute;e RUN, programmable, pr&eacute;cise, offre &agrave; l&rsquo;utilisateur la souplesse du choix de la&nbsp;tension pour laquelle le circuit doit fonctionner. Les caract&eacute;ristiques suppl&eacute;mentaires comprennent un drapeau &ldquo;&nbsp;puissance correcte&nbsp;&rdquo;, un d&eacute;marrage progressif int&eacute;gr&eacute; et une protection thermique.<br \/>\nLes versions de classe industrielle, le LTC3103IDD et le LTC3103IMSE sont test&eacute;s et garantis pour fonctionner sur une gamme de temp&eacute;ratures de jonction de &ndash; 40&deg;C &agrave; 125&deg;C.&nbsp; Les versions de classe industrielle, le LTC3104IDE et le LTC3104IMSE sont test&eacute;s et garantis pour fonctionner sur une gamme de temp&eacute;ratures de jonction de -40&deg;C &agrave; 125&deg;C.&nbsp; Toutes les versions sont disponibles sur stock. <\/p>\n<p><a href=\"http:\/\/www.linear.com\/product\/LTC3104\">www.linear.com\/product\/LTC3104<\/a><\/p>\n<p><a href=\"http:\/\/www.linear.com\/product\/LTC3103\">www.linear.com\/product\/LTC3103<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Linear Technology annonce les LTC3103 et LTC3104, des convertisseurs abaisseurs, synchrones, fonctionnant \u00e0 fr\u00e9quence fixe, pouvant fournir un courant continu de sortie de 300mA, pour des tensions de sortie de 0,6V \u00e0 13,8V.<\/p>\n","protected":false},"author":22,"featured_media":223296,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[881],"tags":[],"domains":[47],"ppma_author":[1149],"class_list":["post-223295","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-nouveaux-produits","domains-electronique-eci"],"acf":[],"yoast_head":"<title>Convertisseurs abaisseurs, synchrones, 300mA, 15V ...<\/title>\n<meta name=\"description\" content=\"Linear Technology annonce les LTC3103 et LTC3104, des convertisseurs abaisseurs, synchrones, fonctionnant \u00e0 fr\u00e9quence fixe, pouvant fournir un courant...\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, 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