{"id":223155,"date":"2011-12-11T23:00:00","date_gmt":"2011-12-11T23:00:00","guid":{"rendered":"https:\/\/eenewseurope.artwhere.co\/regulateurs-ldo-tres-faible-niveaux-de-bruit\/"},"modified":"2011-12-11T23:00:00","modified_gmt":"2011-12-11T23:00:00","slug":"regulateurs-ldo-tres-faible-niveaux-de-bruit","status":"publish","type":"post","link":"https:\/\/www.ecinews.fr\/fr\/regulateurs-ldo-tres-faible-niveaux-de-bruit\/","title":{"rendered":"R\u00e9gulateurs LDO tr\u00e8s faible niveaux de bruit"},"content":{"rendered":"<p>Ces circuits sont &eacute;galement dot&eacute;s d&rsquo;une protection contre l&rsquo;inversion de courant afin de parer aux courts-circuits et aux brusques variations de charge. Ils sont con&ccedil;us pour optimiser la performance de charge et fournir une plus grande pr&eacute;cision de conversion de donn&eacute;es dans les syst&egrave;mes d&rsquo;infrastructures de communication haute fr&eacute;quence, d&rsquo;imagerie m&eacute;dicale, d&rsquo;applications industrielles et d&rsquo;instrumentation. &quot;&nbsp;Les derniers r&eacute;gulateurs LDO d&rsquo;ADI sont sp&eacute;cialement con&ccedil;us pour les charges de haute performance sensibles au bruit rencontr&eacute;es habituellement dans les convertisseurs A\/N et N\/A, les processeurs de signaux num&eacute;riques (Digital Signal Processors ou DSP), les circuits programmables (Field Programmable Gate Array ou FPGA), les amplificateurs de pr&eacute;cision, les horloges haute fr&eacute;quence, les oscillateurs et les circuits de boucles &agrave; verrouillage de phase (Phase Locked Loop ou PLL)&nbsp;&quot;, explique Laurence McGarry, Directeur Marketing, Groupe Produits de Gestion de Puissance (Power Management Products Group), Analog Devices. &quot;&nbsp;Cette performance de charge optimis&eacute;e permet d&rsquo;obtenir une fr&eacute;quence et une pr&eacute;cision de convertisseur sup&eacute;rieures, ce qui, dans les syst&egrave;mes m&eacute;dicaux &agrave; ultrasons par exemple, permet d&rsquo;obtenir une r&eacute;solution d&rsquo;image &eacute;lev&eacute;e.&nbsp;&quot;<br \/>\nCes r&eacute;gulateurs LDO fonctionnent sous une plage de tension de 3,3 &agrave;&nbsp; 20 V. Ils sont con&ccedil;us pour la r&eacute;gulation de circuits analogiques et &agrave; signaux mixtes de haute performance utilisant des rails de tension de 19 V &agrave; 1,22 V et pr&eacute;sentent une excellente r&eacute;ponse aux transitoires de ligne et de charge avec une toute petite sortie c&eacute;ramique 1 &mu;F. Le courant maximum de sortie de l&rsquo;ADP7102 est de 500 mA, celui de l&rsquo;ADP7104 de 300 mA. Les deux r&eacute;gulateurs LDO sont disponibles en bo&icirc;tier SOIC-EP 8 broches et en petit bo&icirc;tier LFCSP de 3 x 3 mm &agrave; la performance thermique excellente pour les applications demandant un courant de sortie jusqu&rsquo;&agrave; 300 mA et un faible encombrement.<\/p>\n<p><a href=\"http:\/\/www.analog.com\/ADP7104\">www.analog.com\/ADP7102<br \/>\nwww.analog.com\/ADP7104<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Analog Devices pr\u00e9sente deux r\u00e9gulateurs \u00e0 faible chute de tension (Low Drop Out ou LDO) caract\u00e9ris\u00e9s par un faible niveau de bruit, un taux de r\u00e9jection de l&rsquo;alimentation \u00e9lev\u00e9 et une excellente r\u00e9ponse aux transitoires de ligne et de charge. Les r\u00e9gulateurs ADP7102 et ADP7104 produisent un facteur bruit sous tension fixe de 15 \u00b5V RMS et un taux de r\u00e9jection de l&rsquo;alimentation de 60 dB \u00e0 10 kHz sous 3 V.<\/p>\n","protected":false},"author":22,"featured_media":223156,"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-223155","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-nouveaux-produits","domains-electronique-eci"],"acf":[],"yoast_head":"<title>R\u00e9gulateurs LDO tr\u00e8s faible niveaux de bruit ...<\/title>\n<meta name=\"description\" content=\"Analog Devices pr\u00e9sente deux r\u00e9gulateurs \u00e0 faible chute de tension (Low Drop Out ou LDO) caract\u00e9ris\u00e9s par un faible niveau de bruit, un taux de...\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.ecinews.fr\/fr\/wp-json\/wp\/v2\/posts\/223155\/\" \/>\n<meta property=\"og:locale\" content=\"fr_FR\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"R\u00e9gulateurs LDO tr\u00e8s faible niveaux de bruit\" \/>\n<meta property=\"og:description\" content=\"Analog Devices pr\u00e9sente deux r\u00e9gulateurs \u00e0 faible chute de tension (Low Drop Out ou LDO) caract\u00e9ris\u00e9s par un faible niveau de bruit, un taux de r\u00e9jection de l&#039;alimentation \u00e9lev\u00e9 et une excellente r\u00e9ponse aux transitoires de ligne et de charge. 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