{"id":484299,"date":"2025-08-13T09:00:44","date_gmt":"2025-08-13T07:00:44","guid":{"rendered":"https:\/\/www.ecinews.fr\/?p=484299"},"modified":"2025-08-08T16:25:04","modified_gmt":"2025-08-08T14:25:04","slug":"regulateur-ldo-ap7372-a-haut-psrr-pour-les-applications-sensibles-au-bruit","status":"publish","type":"post","link":"https:\/\/www.ecinews.fr\/fr\/regulateur-ldo-ap7372-a-haut-psrr-pour-les-applications-sensibles-au-bruit\/","title":{"rendered":"R\u00e9gulateur LDO AP7372 \u00e0 haut PSRR pour les applications sensibles au bruit"},"content":{"rendered":"<h3>Diodes Incorporated annonce la sortie du r\u00e9gulateur LDO faible bruit AP7372, con\u00e7u pour alimenter des composants de pr\u00e9cision tels que les convertisseurs de donn\u00e9es (ADC, DAC), les oscillateurs contr\u00f4l\u00e9s en tension (VCO) et les boucles \u00e0 verrouillage de phase (PLL).<\/h3>\n<p>Avec un rejet d\u2019ondulation de l\u2019alimentation (PSRR) allant jusqu\u2019\u00e0 90 dB sur une large gamme de fr\u00e9quences et un bruit de sortie extr\u00eamement faible de seulement 8\u03bcVrms, l\u2019AP7372 permet aux concepteurs de r\u00e9duire les effets du bruit de la source d\u2019alimentation et de respecter des exigences strictes en mati\u00e8re de bruit et d\u2019ondulation. Ce r\u00e9gulateur est particuli\u00e8rement adapt\u00e9 aux \u00e9quipements de test et mesure, aux syst\u00e8mes de communication, \u00e0 l\u2019automatisation industrielle et aux dispositifs m\u00e9dicaux.<\/p>\n<p>L\u2019AP7372 fournit un courant de sortie jusqu\u2019\u00e0 200 mA avec une tension de chute (VDO) de 120 mV. Il est disponible en cinq versions \u00e0 tension fixe (1,8V, 2,5V, 3,3V, 5,0V) et une version ajustable jusqu\u2019\u00e0 1,2V. Un broche d\u00e9di\u00e9e au diviseur de r\u00e9sistance permet un r\u00e9glage fin des tensions fixes. Son plage de tension d\u2019entr\u00e9e de 2,7V \u00e0 20V le rend compatible avec les standards d\u2019alimentation courants comme le 12V, le 5V ou une cellule Li-Ion.<\/p>\n<p>Le r\u00e9gulateur int\u00e8gre \u00e9galement un temps de d\u00e9marrage progressif ajustable via un condensateur externe, une protection contre les surintensit\u00e9s et les courts-circuits, ainsi qu\u2019une protection thermique. Un condensateur de sortie c\u00e9ramique de 2,2\u03bcF suffit \u00e0 garantir la stabilit\u00e9 du circuit, qui ne n\u00e9cessite que deux autres composants : un condensateur d\u2019entr\u00e9e et un condensateur de d\u00e9marrage.<\/p>\n<p>Enfin, une broche d\u2019activation permet un contr\u00f4le syst\u00e8me comme le s\u00e9quencement de mise sous tension ou l\u2019\u00e9conomie d\u2019\u00e9nergie. Le courant de veille est de seulement 66\u03bcA, et le courant en mode arr\u00eat est d\u2019environ 3\u03bcA, assurant un impact minimal sur le budget \u00e9nerg\u00e9tique global.<\/p>\n<p><a href=\"https:\/\/www.diodes.com\/\">Diodes Incorporated<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Diodes Incorporated annonce la sortie du r\u00e9gulateur LDO faible bruit AP7372, con\u00e7u pour alimenter des composants de pr\u00e9cision tels que les convertisseurs de donn\u00e9es (ADC, DAC), les oscillateurs contr\u00f4l\u00e9s en tension (VCO) et les boucles \u00e0 verrouillage de phase (PLL). Avec un rejet d\u2019ondulation de l\u2019alimentation (PSRR) allant jusqu\u2019\u00e0 90 dB sur une large gamme [&hellip;]<\/p>\n","protected":false},"author":39,"featured_media":484312,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[881],"tags":[7627],"domains":[47],"ppma_author":[6113],"class_list":["post-484299","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-nouveaux-produits","tag-regulateur-de-tension","domains-electronique-eci"],"acf":[],"yoast_head":"<title>R\u00e9gulateur LDO AP7372 \u00e0 haut PSRR pour les applications sensi...<\/title>\n<meta name=\"description\" content=\"Diodes Incorporated annonce la sortie du r\u00e9gulateur LDO faible bruit AP7372, con\u00e7u pour alimenter des composants de pr\u00e9cision tels que les convertisseurs...\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, 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